640195920

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3257}}^1$

素因数の和:3299

約数の個数: 320

約数和(自身を含む): 2714826240

約数和(自身を除く): 2074630320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 27, 28, 30, 35, 36, 39, 40, 42, 45, 48, 52, 54, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 104, 105, 108, 112, 117, 120, 126, 130, 135, 140, 144, 156, 168, 180, 182, 189, 195, 208, 210, 216, 234, 240, 252, 260, 270, 273, 280, 312, 315, 336, 351, 360, 364, 378, 390, 420, 432, 455, 468, 504, 520, 540, 546, 560, 585, 624, 630, 702, 720, 728, 756, 780, 819, 840, 910, 936, 945, 1008, 1040, 1080, 1092, 1170, 1260, 1365, 1404, 1456, 1512, 1560, 1638, 1680, 1755, 1820, 1872, 1890, 2160, 2184, 2340, 2457, 2520, 2730, 2808, 3024, 3120, 3257, 3276, 3510, 3640, 3780, 4095, 4368, 4680, 4914, 5040, 5460, 5616, 6514, 6552, 7020, 7280, 7560, 8190, 9360, 9771, 9828, 10920, 12285, 13028, 13104, 14040, 15120, 16285, 16380, 19542, 19656, 21840, 22799, 24570, 26056, 28080, 29313, 32570, 32760, 39084, 39312, 42341, 45598, 48855, 49140, 52112, 58626, 65140, 65520, 68397, 78168, 84682, 87939, 91196, 97710, 98280, 113995, 117252, 127023, 130280, 136794, 146565, 156336, 169364, 175878, 182392, 195420, 196560, 205191, 211705, 227990, 234504, 254046, 260560, 273588, 293130, 296387, 338728, 341985, 351756, 364784, 381069, 390840, 410382, 423410, 439695, 455980, 469008, 508092, 547176, 586260, 592774, 615573, 635115, 677456, 683970, 703512, 762138, 781680, 820764, 846820, 879390, 889161, 911960, 1016184, 1025955, 1094352, 1143207, 1172520, 1185548, 1231146, 1270230, 1367940, 1407024, 1481935, 1524276, 1641528, 1693640, 1758780, 1778322, 1823920, 1905345, 2032368, 2051910, 2286414, 2345040, 2371096, 2462292, 2540460, 2667483, 2735880, 2963870, 3048552, 3077865, 3283056, 3387280, 3517560, 3556644, 3810690, 4103820, 4445805, 4572828, 4742192, 4924584, 5080920, 5334966, 5471760, 5716035, 5927740, 6097104, 6155730, 7035120, 7113288, 7621380, 8002449, 8207640, 8891610, 9145656, 9849168, 10161840, 10669932, 11432070, 11855480, 12311460, 13337415, 14226576, 15242760, 16004898, 16415280, 17783220, 18291312, 21339864, 22864140, 23710960, 24622920, 26674830, 30485520, 32009796, 35566440, 40012245, 42679728, 45728280, 49245840, 53349660, 64019592, 71132880, 80024490, 91456560, 106699320, 128039184, 160048980, 213398640, 320097960, 640195920]

約数ペア:

[(1, 640195920), (2, 320097960), (3, 213398640), (4, 160048980), (5, 128039184), (6, 106699320), (7, 91456560), (8, 80024490), (9, 71132880), (10, 64019592), (12, 53349660), (13, 49245840), (14, 45728280), (15, 42679728), (16, 40012245), (18, 35566440), (20, 32009796), (21, 30485520), (24, 26674830), (26, 24622920), (27, 23710960), (28, 22864140), (30, 21339864), (35, 18291312), (36, 17783220), (39, 16415280), (40, 16004898), (42, 15242760), (45, 14226576), (48, 13337415), (52, 12311460), (54, 11855480), (56, 11432070), (60, 10669932), (63, 10161840), (65, 9849168), (70, 9145656), (72, 8891610), (78, 8207640), (80, 8002449), (84, 7621380), (90, 7113288), (91, 7035120), (104, 6155730), (105, 6097104), (108, 5927740), (112, 5716035), (117, 5471760), (120, 5334966), (126, 5080920), (130, 4924584), (135, 4742192), (140, 4572828), (144, 4445805), (156, 4103820), (168, 3810690), (180, 3556644), (182, 3517560), (189, 3387280), (195, 3283056), (208, 3077865), (210, 3048552), (216, 2963870), (234, 2735880), (240, 2667483), (252, 2540460), (260, 2462292), (270, 2371096), (273, 2345040), (280, 2286414), (312, 2051910), (315, 2032368), (336, 1905345), (351, 1823920), (360, 1778322), (364, 1758780), (378, 1693640), (390, 1641528), (420, 1524276), (432, 1481935), (455, 1407024), (468, 1367940), (504, 1270230), (520, 1231146), (540, 1185548), (546, 1172520), (560, 1143207), (585, 1094352), (624, 1025955), (630, 1016184), (702, 911960), (720, 889161), (728, 879390), (756, 846820), (780, 820764), (819, 781680), (840, 762138), (910, 703512), (936, 683970), (945, 677456), (1008, 635115), (1040, 615573), (1080, 592774), (1092, 586260), (1170, 547176), (1260, 508092), (1365, 469008), (1404, 455980), (1456, 439695), (1512, 423410), (1560, 410382), (1638, 390840), (1680, 381069), (1755, 364784), (1820, 351756), (1872, 341985), (1890, 338728), (2160, 296387), (2184, 293130), (2340, 273588), (2457, 260560), (2520, 254046), (2730, 234504), (2808, 227990), (3024, 211705), (3120, 205191), (3257, 196560), (3276, 195420), (3510, 182392), (3640, 175878), (3780, 169364), (4095, 156336), (4368, 146565), (4680, 136794), (4914, 130280), (5040, 127023), (5460, 117252), (5616, 113995), (6514, 98280), (6552, 97710), (7020, 91196), (7280, 87939), (7560, 84682), (8190, 78168), (9360, 68397), (9771, 65520), (9828, 65140), (10920, 58626), (12285, 52112), (13028, 49140), (13104, 48855), (14040, 45598), (15120, 42341), (16285, 39312), (16380, 39084), (19542, 32760), (19656, 32570), (21840, 29313), (22799, 28080), (24570, 26056)]