389636770

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{31397}}^1$

素因数の和:31494

約数の個数: 32

約数和(自身を含む): 752798448

約数和(自身を除く): 363161678

約数列:

[1, 2, 5, 10, 17, 34, 73, 85, 146, 170, 365, 730, 1241, 2482, 6205, 12410, 31397, 62794, 156985, 313970, 533749, 1067498, 2291981, 2668745, 4583962, 5337490, 11459905, 22919810, 38963677, 77927354, 194818385, 389636770]

約数ペア:

[(1, 389636770), (2, 194818385), (5, 77927354), (10, 38963677), (17, 22919810), (34, 11459905), (73, 5337490), (85, 4583962), (146, 2668745), (170, 2291981), (365, 1067498), (730, 533749), (1241, 313970), (2482, 156985), (6205, 62794), (12410, 31397)]