72951920

素因数分解:

$2^4\times 5^1\times {\mathrm{911899}}^1$

素因数の和:911912

約数の個数: 20

約数和(自身を含む): 169613400

約数和(自身を除く): 96661480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 911899, 1823798, 3647596, 4559495, 7295192, 9118990, 14590384, 18237980, 36475960, 72951920]

約数ペア:

[(1, 72951920), (2, 36475960), (4, 18237980), (5, 14590384), (8, 9118990), (10, 7295192), (16, 4559495), (20, 3647596), (40, 1823798), (80, 911899)]