3949990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 7840800

約数和(自身を除く): 3890810

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 149, 241, 298, 482, 745, 1205, 1490, 1639, 2410, 2651, 3278, 5302, 8195, 13255, 16390, 26510, 35909, 71818, 179545, 359090, 394999, 789998, 1974995, 3949990]

約数ペア:

[(1, 3949990), (2, 1974995), (5, 789998), (10, 394999), (11, 359090), (22, 179545), (55, 71818), (110, 35909), (149, 26510), (241, 16390), (298, 13255), (482, 8195), (745, 5302), (1205, 3278), (1490, 2651), (1639, 2410)]