402090860

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{2729}}^1$

素因数の和:2930

約数の個数: 48

約数和(自身を含む): 866829600

約数和(自身を除く): 464738740

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 139, 212, 265, 278, 530, 556, 695, 1060, 1390, 2729, 2780, 5458, 7367, 10916, 13645, 14734, 27290, 29468, 36835, 54580, 73670, 144637, 147340, 289274, 379331, 578548, 723185, 758662, 1446370, 1517324, 1896655, 2892740, 3793310, 7586620, 20104543, 40209086, 80418172, 100522715, 201045430, 402090860]

約数ペア:

[(1, 402090860), (2, 201045430), (4, 100522715), (5, 80418172), (10, 40209086), (20, 20104543), (53, 7586620), (106, 3793310), (139, 2892740), (212, 1896655), (265, 1517324), (278, 1446370), (530, 758662), (556, 723185), (695, 578548), (1060, 379331), (1390, 289274), (2729, 147340), (2780, 144637), (5458, 73670), (7367, 54580), (10916, 36835), (13645, 29468), (14734, 27290)]