201680440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:329

約数の個数: 128

約数和(自身を含む): 521640000

約数和(自身を除く): 319959560

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 137, 149, 152, 190, 247, 260, 274, 298, 380, 494, 520, 548, 596, 685, 745, 760, 988, 1096, 1192, 1235, 1370, 1490, 1781, 1937, 1976, 2470, 2603, 2740, 2831, 2980, 3562, 3874, 4940, 5206, 5480, 5662, 5960, 7124, 7748, 8905, 9685, 9880, 10412, 11324, 13015, 14155, 14248, 15496, 17810, 19370, 20413, 20824, 22648, 26030, 28310, 33839, 35620, 36803, 38740, 40826, 52060, 56620, 67678, 71240, 73606, 77480, 81652, 102065, 104120, 113240, 135356, 147212, 163304, 169195, 184015, 204130, 265369, 270712, 294424, 338390, 368030, 387847, 408260, 530738, 676780, 736060, 775694, 816520, 1061476, 1326845, 1353560, 1472120, 1551388, 1939235, 2122952, 2653690, 3102776, 3878470, 5042011, 5307380, 7756940, 10084022, 10614760, 15513880, 20168044, 25210055, 40336088, 50420110, 100840220, 201680440]

約数ペア:

[(1, 201680440), (2, 100840220), (4, 50420110), (5, 40336088), (8, 25210055), (10, 20168044), (13, 15513880), (19, 10614760), (20, 10084022), (26, 7756940), (38, 5307380), (40, 5042011), (52, 3878470), (65, 3102776), (76, 2653690), (95, 2122952), (104, 1939235), (130, 1551388), (137, 1472120), (149, 1353560), (152, 1326845), (190, 1061476), (247, 816520), (260, 775694), (274, 736060), (298, 676780), (380, 530738), (494, 408260), (520, 387847), (548, 368030), (596, 338390), (685, 294424), (745, 270712), (760, 265369), (988, 204130), (1096, 184015), (1192, 169195), (1235, 163304), (1370, 147212), (1490, 135356), (1781, 113240), (1937, 104120), (1976, 102065), (2470, 81652), (2603, 77480), (2740, 73606), (2831, 71240), (2980, 67678), (3562, 56620), (3874, 52060), (4940, 40826), (5206, 38740), (5480, 36803), (5662, 35620), (5960, 33839), (7124, 28310), (7748, 26030), (8905, 22648), (9685, 20824), (9880, 20413), (10412, 19370), (11324, 17810), (13015, 15496), (14155, 14248)]