81205290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{902281}}^1$

素因数の和:902294

約数の個数: 24

約数和(自身を含む): 211133988

約数和(自身を除く): 129928698

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 902281, 1804562, 2706843, 4511405, 5413686, 8120529, 9022810, 13534215, 16241058, 27068430, 40602645, 81205290]

約数ペア:

[(1, 81205290), (2, 40602645), (3, 27068430), (5, 16241058), (6, 13534215), (9, 9022810), (10, 8120529), (15, 5413686), (18, 4511405), (30, 2706843), (45, 1804562), (90, 902281)]