72855280

素因数分解:

$2^4\times 5^1\times {\mathrm{910691}}^1$

素因数の和:910704

約数の個数: 20

約数和(自身を含む): 169388712

約数和(自身を除く): 96533432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 910691, 1821382, 3642764, 4553455, 7285528, 9106910, 14571056, 18213820, 36427640, 72855280]

約数ペア:

[(1, 72855280), (2, 36427640), (4, 18213820), (5, 14571056), (8, 9106910), (10, 7285528), (16, 4553455), (20, 3642764), (40, 1821382), (80, 910691)]