20409687480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{25603}}^1$

素因数の和:25710

約数の個数: 256

約数和(自身を含む): 76394142720

約数和(自身を除く): 55984455240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 73, 78, 84, 91, 104, 105, 120, 130, 140, 146, 156, 168, 182, 195, 210, 219, 260, 273, 280, 292, 312, 364, 365, 390, 420, 438, 455, 511, 520, 546, 584, 728, 730, 780, 840, 876, 910, 949, 1022, 1092, 1095, 1365, 1460, 1533, 1560, 1752, 1820, 1898, 2044, 2184, 2190, 2555, 2730, 2847, 2920, 3066, 3640, 3796, 4088, 4380, 4745, 5110, 5460, 5694, 6132, 6643, 7592, 7665, 8760, 9490, 10220, 10920, 11388, 12264, 13286, 14235, 15330, 18980, 19929, 20440, 22776, 25603, 26572, 28470, 30660, 33215, 37960, 39858, 51206, 53144, 56940, 61320, 66430, 76809, 79716, 99645, 102412, 113880, 128015, 132860, 153618, 159432, 179221, 199290, 204824, 256030, 265720, 307236, 332839, 358442, 384045, 398580, 512060, 537663, 614472, 665678, 716884, 768090, 797160, 896105, 998517, 1024120, 1075326, 1331356, 1433768, 1536180, 1664195, 1792210, 1869019, 1997034, 2150652, 2329873, 2662712, 2688315, 3072360, 3328390, 3584420, 3738038, 3994068, 4301304, 4659746, 4992585, 5376630, 5607057, 6656780, 6989619, 7168840, 7476076, 7988136, 9319492, 9345095, 9985170, 10753260, 11214114, 11649365, 13083133, 13313560, 13979238, 14952152, 18638984, 18690190, 19970340, 21506520, 22428228, 23298730, 24297247, 26166266, 27958476, 28035285, 34948095, 37380380, 39249399, 39940680, 44856456, 46597460, 48594494, 52332532, 55916952, 56070570, 65415665, 69896190, 72891741, 74760760, 78498798, 93194920, 97188988, 104665064, 112141140, 121486235, 130831330, 139792380, 145783482, 156997596, 170080729, 194377976, 196246995, 224282280, 242972470, 261662660, 279584760, 291566964, 313995192, 340161458, 364458705, 392493990, 485944940, 510242187, 523325320, 583133928, 680322916, 728917410, 784987980, 850403645, 971889880, 1020484374, 1360645832, 1457834820, 1569975960, 1700807290, 2040968748, 2551210935, 2915669640, 3401614580, 4081937496, 5102421870, 6803229160, 10204843740, 20409687480]

約数ペア:

[(1, 20409687480), (2, 10204843740), (3, 6803229160), (4, 5102421870), (5, 4081937496), (6, 3401614580), (7, 2915669640), (8, 2551210935), (10, 2040968748), (12, 1700807290), (13, 1569975960), (14, 1457834820), (15, 1360645832), (20, 1020484374), (21, 971889880), (24, 850403645), (26, 784987980), (28, 728917410), (30, 680322916), (35, 583133928), (39, 523325320), (40, 510242187), (42, 485944940), (52, 392493990), (56, 364458705), (60, 340161458), (65, 313995192), (70, 291566964), (73, 279584760), (78, 261662660), (84, 242972470), (91, 224282280), (104, 196246995), (105, 194377976), (120, 170080729), (130, 156997596), (140, 145783482), (146, 139792380), (156, 130831330), (168, 121486235), (182, 112141140), (195, 104665064), (210, 97188988), (219, 93194920), (260, 78498798), (273, 74760760), (280, 72891741), (292, 69896190), (312, 65415665), (364, 56070570), (365, 55916952), (390, 52332532), (420, 48594494), (438, 46597460), (455, 44856456), (511, 39940680), (520, 39249399), (546, 37380380), (584, 34948095), (728, 28035285), (730, 27958476), (780, 26166266), (840, 24297247), (876, 23298730), (910, 22428228), (949, 21506520), (1022, 19970340), (1092, 18690190), (1095, 18638984), (1365, 14952152), (1460, 13979238), (1533, 13313560), (1560, 13083133), (1752, 11649365), (1820, 11214114), (1898, 10753260), (2044, 9985170), (2184, 9345095), (2190, 9319492), (2555, 7988136), (2730, 7476076), (2847, 7168840), (2920, 6989619), (3066, 6656780), (3640, 5607057), (3796, 5376630), (4088, 4992585), (4380, 4659746), (4745, 4301304), (5110, 3994068), (5460, 3738038), (5694, 3584420), (6132, 3328390), (6643, 3072360), (7592, 2688315), (7665, 2662712), (8760, 2329873), (9490, 2150652), (10220, 1997034), (10920, 1869019), (11388, 1792210), (12264, 1664195), (13286, 1536180), (14235, 1433768), (15330, 1331356), (18980, 1075326), (19929, 1024120), (20440, 998517), (22776, 896105), (25603, 797160), (26572, 768090), (28470, 716884), (30660, 665678), (33215, 614472), (37960, 537663), (39858, 512060), (51206, 398580), (53144, 384045), (56940, 358442), (61320, 332839), (66430, 307236), (76809, 265720), (79716, 256030), (99645, 204824), (102412, 199290), (113880, 179221), (128015, 159432), (132860, 153618)]