210553640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{478531}}^1$

素因数の和:478553

約数の個数: 32

約数和(自身を含む): 516814560

約数和(自身を除く): 306260920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 478531, 957062, 1914124, 2392655, 3828248, 4785310, 5263841, 9570620, 10527682, 19141240, 21055364, 26319205, 42110728, 52638410, 105276820, 210553640]

約数ペア:

[(1, 210553640), (2, 105276820), (4, 52638410), (5, 42110728), (8, 26319205), (10, 21055364), (11, 19141240), (20, 10527682), (22, 9570620), (40, 5263841), (44, 4785310), (55, 3828248), (88, 2392655), (110, 1914124), (220, 957062), (440, 478531)]