81211490

素因数分解:

$2^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{49823}}^1$

素因数の和:49993

約数の個数: 16

約数和(自身を含む): 147080448

約数和(自身を除く): 65868958

約数列:

[1, 2, 5, 10, 163, 326, 815, 1630, 49823, 99646, 249115, 498230, 8121149, 16242298, 40605745, 81211490]

約数ペア:

[(1, 81211490), (2, 40605745), (5, 16242298), (10, 8121149), (163, 498230), (326, 249115), (815, 99646), (1630, 49823)]