71488280

素因数分解:

$2^3\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{1583}}^1$

素因数の和:2723

約数の個数: 32

約数和(自身を含む): 161092800

約数和(自身を除く): 89604520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1129, 1583, 2258, 3166, 4516, 5645, 6332, 7915, 9032, 11290, 12664, 15830, 22580, 31660, 45160, 63320, 1787207, 3574414, 7148828, 8936035, 14297656, 17872070, 35744140, 71488280]

約数ペア:

[(1, 71488280), (2, 35744140), (4, 17872070), (5, 14297656), (8, 8936035), (10, 7148828), (20, 3574414), (40, 1787207), (1129, 63320), (1583, 45160), (2258, 31660), (3166, 22580), (4516, 15830), (5645, 12664), (6332, 11290), (7915, 9032)]