6438280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2267}}^1$

素因数の和:2349

約数の個数: 32

約数和(自身を含む): 14696640

約数和(自身を除く): 8258360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2267, 2840, 4534, 9068, 11335, 18136, 22670, 45340, 90680, 160957, 321914, 643828, 804785, 1287656, 1609570, 3219140, 6438280]

約数ペア:

[(1, 6438280), (2, 3219140), (4, 1609570), (5, 1287656), (8, 804785), (10, 643828), (20, 321914), (40, 160957), (71, 90680), (142, 45340), (284, 22670), (355, 18136), (568, 11335), (710, 9068), (1420, 4534), (2267, 2840)]