390961004

素因数分解:

$2^2\times 7^3\times {\mathrm{284957}}^1$

素因数の和:284982

約数の個数: 24

約数和(自身を含む): 797882400

約数和(自身を除く): 406921396

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 284957, 569914, 1139828, 1994699, 3989398, 7978796, 13962893, 27925786, 55851572, 97740251, 195480502, 390961004]

約数ペア:

[(1, 390961004), (2, 195480502), (4, 97740251), (7, 55851572), (14, 27925786), (28, 13962893), (49, 7978796), (98, 3989398), (196, 1994699), (343, 1139828), (686, 569914), (1372, 284957)]