391376

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:470

約数の個数: 20

約数和(自身を含む): 772644

約数和(自身を除く): 381268

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 401, 488, 802, 976, 1604, 3208, 6416, 24461, 48922, 97844, 195688, 391376]

約数ペア:

[(1, 391376), (2, 195688), (4, 97844), (8, 48922), (16, 24461), (61, 6416), (122, 3208), (244, 1604), (401, 976), (488, 802)]