81012860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{94201}}^1$

素因数の和:94253

約数の個数: 24

約数和(自身を含む): 174085296

約数和(自身を除く): 93072436

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 94201, 188402, 376804, 471005, 942010, 1884020, 4050643, 8101286, 16202572, 20253215, 40506430, 81012860]

約数ペア:

[(1, 81012860), (2, 40506430), (4, 20253215), (5, 16202572), (10, 8101286), (20, 4050643), (43, 1884020), (86, 942010), (172, 471005), (215, 376804), (430, 188402), (860, 94201)]