85811980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{225821}}^1$

素因数の和:225849

約数の個数: 24

約数和(自身を含む): 189690480

約数和(自身を除く): 103878500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 225821, 451642, 903284, 1129105, 2258210, 4290599, 4516420, 8581198, 17162396, 21452995, 42905990, 85811980]

約数ペア:

[(1, 85811980), (2, 42905990), (4, 21452995), (5, 17162396), (10, 8581198), (19, 4516420), (20, 4290599), (38, 2258210), (76, 1129105), (95, 903284), (190, 451642), (380, 225821)]