65680400

素因数分解:

$2^4\times 5^2\times {\mathrm{164201}}^1$

素因数の和:164219

約数の個数: 30

約数和(自身を含む): 157798122

約数和(自身を除く): 92117722

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 164201, 328402, 656804, 821005, 1313608, 1642010, 2627216, 3284020, 4105025, 6568040, 8210050, 13136080, 16420100, 32840200, 65680400]

約数ペア:

[(1, 65680400), (2, 32840200), (4, 16420100), (5, 13136080), (8, 8210050), (10, 6568040), (16, 4105025), (20, 3284020), (25, 2627216), (40, 1642010), (50, 1313608), (80, 821005), (100, 656804), (200, 328402), (400, 164201)]