66279920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1667}}^1$

素因数の和:1758

約数の個数: 80

約数和(自身を含む): 178702848

約数和(自身を除く): 112422928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1667, 1988, 2485, 2840, 3334, 3976, 4970, 5680, 6668, 7952, 8335, 9940, 11669, 13336, 16670, 19880, 23338, 26672, 33340, 39760, 46676, 58345, 66680, 93352, 116690, 118357, 133360, 186704, 233380, 236714, 466760, 473428, 591785, 828499, 933520, 946856, 1183570, 1656998, 1893712, 2367140, 3313996, 4142495, 4734280, 6627992, 8284990, 9468560, 13255984, 16569980, 33139960, 66279920]

約数ペア:

[(1, 66279920), (2, 33139960), (4, 16569980), (5, 13255984), (7, 9468560), (8, 8284990), (10, 6627992), (14, 4734280), (16, 4142495), (20, 3313996), (28, 2367140), (35, 1893712), (40, 1656998), (56, 1183570), (70, 946856), (71, 933520), (80, 828499), (112, 591785), (140, 473428), (142, 466760), (280, 236714), (284, 233380), (355, 186704), (497, 133360), (560, 118357), (568, 116690), (710, 93352), (994, 66680), (1136, 58345), (1420, 46676), (1667, 39760), (1988, 33340), (2485, 26672), (2840, 23338), (3334, 19880), (3976, 16670), (4970, 13336), (5680, 11669), (6668, 9940), (7952, 8335)]