72295280

素因数分解:

$2^4\times 5^1\times {\mathrm{903691}}^1$

素因数の和:903704

約数の個数: 20

約数和(自身を含む): 168086712

約数和(自身を除く): 95791432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 903691, 1807382, 3614764, 4518455, 7229528, 9036910, 14459056, 18073820, 36147640, 72295280]

約数ペア:

[(1, 72295280), (2, 36147640), (4, 18073820), (5, 14459056), (8, 9036910), (10, 7229528), (16, 4518455), (20, 3614764), (40, 1807382), (80, 903691)]