20707100

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{3907}}^1$

素因数の和:3974

約数の個数: 36

約数和(自身を含む): 45793944

約数和(自身を除く): 25086844

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 3907, 5300, 7814, 15628, 19535, 39070, 78140, 97675, 195350, 207071, 390700, 414142, 828284, 1035355, 2070710, 4141420, 5176775, 10353550, 20707100]

約数ペア:

[(1, 20707100), (2, 10353550), (4, 5176775), (5, 4141420), (10, 2070710), (20, 1035355), (25, 828284), (50, 414142), (53, 390700), (100, 207071), (106, 195350), (212, 97675), (265, 78140), (530, 39070), (1060, 19535), (1325, 15628), (2650, 7814), (3907, 5300)]