64211540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103567}}^1$

素因数の和:103607

約数の個数: 24

約数和(自身を含む): 139195392

約数和(自身を除く): 74983852

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 103567, 207134, 414268, 517835, 1035670, 2071340, 3210577, 6421154, 12842308, 16052885, 32105770, 64211540]

約数ペア:

[(1, 64211540), (2, 32105770), (4, 16052885), (5, 12842308), (10, 6421154), (20, 3210577), (31, 2071340), (62, 1035670), (124, 517835), (155, 414268), (310, 207134), (620, 103567)]