28712680

素因数分解:

$2^3\times 5^1\times {\mathrm{717817}}^1$

素因数の和:717828

約数の個数: 16

約数和(自身を含む): 64603620

約数和(自身を除く): 35890940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 717817, 1435634, 2871268, 3589085, 5742536, 7178170, 14356340, 28712680]

約数ペア:

[(1, 28712680), (2, 14356340), (4, 7178170), (5, 5742536), (8, 3589085), (10, 2871268), (20, 1435634), (40, 717817)]