641956

素因数分解:

$2^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{227}}^1$

素因数の和:339

約数の個数: 24

約数和(自身を含む): 1302336

約数和(自身を除く): 660380

約数列:

[1, 2, 4, 7, 14, 28, 101, 202, 227, 404, 454, 707, 908, 1414, 1589, 2828, 3178, 6356, 22927, 45854, 91708, 160489, 320978, 641956]

約数ペア:

[(1, 641956), (2, 320978), (4, 160489), (7, 91708), (14, 45854), (28, 22927), (101, 6356), (202, 3178), (227, 2828), (404, 1589), (454, 1414), (707, 908)]