441640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 1015560

約数和(自身を除く): 573920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 181, 244, 305, 362, 488, 610, 724, 905, 1220, 1448, 1810, 2440, 3620, 7240, 11041, 22082, 44164, 55205, 88328, 110410, 220820, 441640]

約数ペア:

[(1, 441640), (2, 220820), (4, 110410), (5, 88328), (8, 55205), (10, 44164), (20, 22082), (40, 11041), (61, 7240), (122, 3620), (181, 2440), (244, 1810), (305, 1448), (362, 1220), (488, 905), (610, 724)]