20104687560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{70901}}^1$

素因数の和:71071

約数の個数: 128

約数和(自身を含む): 64322294400

約数和(自身を除く): 44217606840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 139, 170, 204, 255, 278, 340, 408, 417, 510, 556, 680, 695, 834, 1020, 1112, 1390, 1668, 2040, 2085, 2363, 2780, 3336, 4170, 4726, 5560, 7089, 8340, 9452, 11815, 14178, 16680, 18904, 23630, 28356, 35445, 47260, 56712, 70890, 70901, 94520, 141780, 141802, 212703, 283560, 283604, 354505, 425406, 567208, 709010, 850812, 1063515, 1205317, 1418020, 1701624, 2127030, 2410634, 2836040, 3615951, 4254060, 4821268, 6026585, 7231902, 8508120, 9642536, 9855239, 12053170, 14463804, 18079755, 19710478, 24106340, 28927608, 29565717, 36159510, 39420956, 48212680, 49276195, 59131434, 72319020, 78841912, 98552390, 118262868, 144638040, 147828585, 167539063, 197104780, 236525736, 295657170, 335078126, 394209560, 502617189, 591314340, 670156252, 837695315, 1005234378, 1182628680, 1340312504, 1675390630, 2010468756, 2513085945, 3350781260, 4020937512, 5026171890, 6701562520, 10052343780, 20104687560]

約数ペア:

[(1, 20104687560), (2, 10052343780), (3, 6701562520), (4, 5026171890), (5, 4020937512), (6, 3350781260), (8, 2513085945), (10, 2010468756), (12, 1675390630), (15, 1340312504), (17, 1182628680), (20, 1005234378), (24, 837695315), (30, 670156252), (34, 591314340), (40, 502617189), (51, 394209560), (60, 335078126), (68, 295657170), (85, 236525736), (102, 197104780), (120, 167539063), (136, 147828585), (139, 144638040), (170, 118262868), (204, 98552390), (255, 78841912), (278, 72319020), (340, 59131434), (408, 49276195), (417, 48212680), (510, 39420956), (556, 36159510), (680, 29565717), (695, 28927608), (834, 24106340), (1020, 19710478), (1112, 18079755), (1390, 14463804), (1668, 12053170), (2040, 9855239), (2085, 9642536), (2363, 8508120), (2780, 7231902), (3336, 6026585), (4170, 4821268), (4726, 4254060), (5560, 3615951), (7089, 2836040), (8340, 2410634), (9452, 2127030), (11815, 1701624), (14178, 1418020), (16680, 1205317), (18904, 1063515), (23630, 850812), (28356, 709010), (35445, 567208), (47260, 425406), (56712, 354505), (70890, 283604), (70901, 283560), (94520, 212703), (141780, 141802)]