81069280

素因数分解:

$2^5\times 5^1\times {\mathrm{506683}}^1$

素因数の和:506698

約数の個数: 24

約数和(自身を含む): 191526552

約数和(自身を除く): 110457272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 506683, 1013366, 2026732, 2533415, 4053464, 5066830, 8106928, 10133660, 16213856, 20267320, 40534640, 81069280]

約数ペア:

[(1, 81069280), (2, 40534640), (4, 20267320), (5, 16213856), (8, 10133660), (10, 8106928), (16, 5066830), (20, 4053464), (32, 2533415), (40, 2026732), (80, 1013366), (160, 506683)]