54538280

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{2617}}^1$

素因数の和:3149

約数の個数: 32

約数和(自身を含む): 122993640

約数和(自身を除く): 68455360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 2617, 4168, 5210, 5234, 10420, 10468, 13085, 20840, 20936, 26170, 52340, 104680, 1363457, 2726914, 5453828, 6817285, 10907656, 13634570, 27269140, 54538280]

約数ペア:

[(1, 54538280), (2, 27269140), (4, 13634570), (5, 10907656), (8, 6817285), (10, 5453828), (20, 2726914), (40, 1363457), (521, 104680), (1042, 52340), (2084, 26170), (2605, 20936), (2617, 20840), (4168, 13085), (5210, 10468), (5234, 10420)]