73438840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{42697}}^1$

素因数の和:42751

約数の個数: 32

約数和(自身を含む): 169084080

約数和(自身を除く): 95645240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 42697, 85394, 170788, 213485, 341576, 426970, 853940, 1707880, 1835971, 3671942, 7343884, 9179855, 14687768, 18359710, 36719420, 73438840]

約数ペア:

[(1, 73438840), (2, 36719420), (4, 18359710), (5, 14687768), (8, 9179855), (10, 7343884), (20, 3671942), (40, 1835971), (43, 1707880), (86, 853940), (172, 426970), (215, 341576), (344, 213485), (430, 170788), (860, 85394), (1720, 42697)]