81781922

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{4549}}^1$

素因数の和:4741

約数の個数: 16

約数和(自身を含む): 125307000

約数和(自身を除く): 43525078

約数列:

[1, 2, 89, 101, 178, 202, 4549, 8989, 9098, 17978, 404861, 459449, 809722, 918898, 40890961, 81781922]

約数ペア:

[(1, 81781922), (2, 40890961), (89, 918898), (101, 809722), (178, 459449), (202, 404861), (4549, 17978), (8989, 9098)]