28902680

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10177}}^1$

素因数の和:10259

約数の個数: 32

約数和(自身を含む): 65953440

約数和(自身を除く): 37050760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 10177, 20354, 40708, 50885, 81416, 101770, 203540, 407080, 722567, 1445134, 2890268, 3612835, 5780536, 7225670, 14451340, 28902680]

約数ペア:

[(1, 28902680), (2, 14451340), (4, 7225670), (5, 5780536), (8, 3612835), (10, 2890268), (20, 1445134), (40, 722567), (71, 407080), (142, 203540), (284, 101770), (355, 81416), (568, 50885), (710, 40708), (1420, 20354), (2840, 10177)]