400643880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1931}}^1$

素因数の和:1984

約数の個数: 256

約数和(自身を含む): 1557964800

約数和(自身を除く): 1157320920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 19, 20, 21, 24, 26, 28, 30, 35, 38, 39, 40, 42, 52, 56, 57, 60, 65, 70, 76, 78, 84, 91, 95, 104, 105, 114, 120, 130, 133, 140, 152, 156, 168, 182, 190, 195, 210, 228, 247, 260, 266, 273, 280, 285, 312, 364, 380, 390, 399, 420, 455, 456, 494, 520, 532, 546, 570, 665, 728, 741, 760, 780, 798, 840, 910, 988, 1064, 1092, 1140, 1235, 1330, 1365, 1482, 1560, 1596, 1729, 1820, 1931, 1976, 1995, 2184, 2280, 2470, 2660, 2730, 2964, 3192, 3458, 3640, 3705, 3862, 3990, 4940, 5187, 5320, 5460, 5793, 5928, 6916, 7410, 7724, 7980, 8645, 9655, 9880, 10374, 10920, 11586, 13517, 13832, 14820, 15448, 15960, 17290, 19310, 20748, 23172, 25103, 25935, 27034, 28965, 29640, 34580, 36689, 38620, 40551, 41496, 46344, 50206, 51870, 54068, 57930, 67585, 69160, 73378, 75309, 77240, 81102, 100412, 103740, 108136, 110067, 115860, 125515, 135170, 146756, 150618, 162204, 175721, 183445, 200824, 202755, 207480, 220134, 231720, 251030, 256823, 270340, 293512, 301236, 324408, 351442, 366890, 376545, 405510, 440268, 476957, 502060, 513646, 527163, 540680, 550335, 602472, 702884, 733780, 753090, 770469, 811020, 878605, 880536, 953914, 1004120, 1027292, 1054326, 1100670, 1284115, 1405768, 1430871, 1467560, 1506180, 1540938, 1622040, 1757210, 1907828, 2054584, 2108652, 2201340, 2384785, 2568230, 2635815, 2861742, 3012360, 3081876, 3338699, 3514420, 3815656, 3852345, 4217304, 4402680, 4769570, 5136460, 5271630, 5723484, 6163752, 6677398, 7028840, 7154355, 7704690, 9539140, 10016097, 10272920, 10543260, 11446968, 13354796, 14308710, 15409380, 16693495, 19078280, 20032194, 21086520, 26709592, 28617420, 30818760, 33386990, 40064388, 50080485, 57234840, 66773980, 80128776, 100160970, 133547960, 200321940, 400643880]

約数ペア:

[(1, 400643880), (2, 200321940), (3, 133547960), (4, 100160970), (5, 80128776), (6, 66773980), (7, 57234840), (8, 50080485), (10, 40064388), (12, 33386990), (13, 30818760), (14, 28617420), (15, 26709592), (19, 21086520), (20, 20032194), (21, 19078280), (24, 16693495), (26, 15409380), (28, 14308710), (30, 13354796), (35, 11446968), (38, 10543260), (39, 10272920), (40, 10016097), (42, 9539140), (52, 7704690), (56, 7154355), (57, 7028840), (60, 6677398), (65, 6163752), (70, 5723484), (76, 5271630), (78, 5136460), (84, 4769570), (91, 4402680), (95, 4217304), (104, 3852345), (105, 3815656), (114, 3514420), (120, 3338699), (130, 3081876), (133, 3012360), (140, 2861742), (152, 2635815), (156, 2568230), (168, 2384785), (182, 2201340), (190, 2108652), (195, 2054584), (210, 1907828), (228, 1757210), (247, 1622040), (260, 1540938), (266, 1506180), (273, 1467560), (280, 1430871), (285, 1405768), (312, 1284115), (364, 1100670), (380, 1054326), (390, 1027292), (399, 1004120), (420, 953914), (455, 880536), (456, 878605), (494, 811020), (520, 770469), (532, 753090), (546, 733780), (570, 702884), (665, 602472), (728, 550335), (741, 540680), (760, 527163), (780, 513646), (798, 502060), (840, 476957), (910, 440268), (988, 405510), (1064, 376545), (1092, 366890), (1140, 351442), (1235, 324408), (1330, 301236), (1365, 293512), (1482, 270340), (1560, 256823), (1596, 251030), (1729, 231720), (1820, 220134), (1931, 207480), (1976, 202755), (1995, 200824), (2184, 183445), (2280, 175721), (2470, 162204), (2660, 150618), (2730, 146756), (2964, 135170), (3192, 125515), (3458, 115860), (3640, 110067), (3705, 108136), (3862, 103740), (3990, 100412), (4940, 81102), (5187, 77240), (5320, 75309), (5460, 73378), (5793, 69160), (5928, 67585), (6916, 57930), (7410, 54068), (7724, 51870), (7980, 50206), (8645, 46344), (9655, 41496), (9880, 40551), (10374, 38620), (10920, 36689), (11586, 34580), (13517, 29640), (13832, 28965), (14820, 27034), (15448, 25935), (15960, 25103), (17290, 23172), (19310, 20748)]