85228180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{47881}}^1$

素因数の和:47979

約数の個数: 24

約数和(自身を含む): 180993960

約数和(自身を除く): 95765780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 47881, 95762, 191524, 239405, 478810, 957620, 4261409, 8522818, 17045636, 21307045, 42614090, 85228180]

約数ペア:

[(1, 85228180), (2, 42614090), (4, 21307045), (5, 17045636), (10, 8522818), (20, 4261409), (89, 957620), (178, 478810), (356, 239405), (445, 191524), (890, 95762), (1780, 47881)]