1621194620

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{141961}}^1$

素因数の和:142541

約数の個数: 24

約数和(自身を含む): 3410495088

約数和(自身を除く): 1789300468

約数列:

[1, 2, 4, 5, 10, 20, 571, 1142, 2284, 2855, 5710, 11420, 141961, 283922, 567844, 709805, 1419610, 2839220, 81059731, 162119462, 324238924, 405298655, 810597310, 1621194620]

約数ペア:

[(1, 1621194620), (2, 810597310), (4, 405298655), (5, 324238924), (10, 162119462), (20, 81059731), (571, 2839220), (1142, 1419610), (2284, 709805), (2855, 567844), (5710, 283922), (11420, 141961)]