78895910

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{111121}}^1$

素因数の和:111199

約数の個数: 16

約数和(自身を含む): 144014112

約数和(自身を除く): 65118202

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 111121, 222242, 555605, 1111210, 7889591, 15779182, 39447955, 78895910]

約数ペア:

[(1, 78895910), (2, 39447955), (5, 15779182), (10, 7889591), (71, 1111210), (142, 555605), (355, 222242), (710, 111121)]