247788280

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{84859}}^1$

素因数の和:84943

約数の個数: 32

約数和(自身を含む): 565167600

約数和(自身を除く): 317379320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 84859, 169718, 339436, 424295, 678872, 848590, 1697180, 3394360, 6194707, 12389414, 24778828, 30973535, 49557656, 61947070, 123894140, 247788280]

約数ペア:

[(1, 247788280), (2, 123894140), (4, 61947070), (5, 49557656), (8, 30973535), (10, 24778828), (20, 12389414), (40, 6194707), (73, 3394360), (146, 1697180), (292, 848590), (365, 678872), (584, 424295), (730, 339436), (1460, 169718), (2920, 84859)]