81350290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{166021}}^1$

素因数の和:166042

約数の個数: 24

約数和(自身を含む): 170338572

約数和(自身を除く): 88988282

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 166021, 332042, 830105, 1162147, 1660210, 2324294, 5810735, 8135029, 11621470, 16270058, 40675145, 81350290]

約数ペア:

[(1, 81350290), (2, 40675145), (5, 16270058), (7, 11621470), (10, 8135029), (14, 5810735), (35, 2324294), (49, 1660210), (70, 1162147), (98, 830105), (245, 332042), (490, 166021)]