80716400

素因数分解:

$2^4\times 5^2\times {\mathrm{201791}}^1$

素因数の和:201809

約数の個数: 30

約数和(自身を含む): 193922112

約数和(自身を除く): 113205712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 201791, 403582, 807164, 1008955, 1614328, 2017910, 3228656, 4035820, 5044775, 8071640, 10089550, 16143280, 20179100, 40358200, 80716400]

約数ペア:

[(1, 80716400), (2, 40358200), (4, 20179100), (5, 16143280), (8, 10089550), (10, 8071640), (16, 5044775), (20, 4035820), (25, 3228656), (40, 2017910), (50, 1614328), (80, 1008955), (100, 807164), (200, 403582), (400, 201791)]