40536220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{65381}}^1$

素因数の和:65421

約数の個数: 24

約数和(自身を含む): 87873408

約数和(自身を除く): 47337188

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 65381, 130762, 261524, 326905, 653810, 1307620, 2026811, 4053622, 8107244, 10134055, 20268110, 40536220]

約数ペア:

[(1, 40536220), (2, 20268110), (4, 10134055), (5, 8107244), (10, 4053622), (20, 2026811), (31, 1307620), (62, 653810), (124, 326905), (155, 261524), (310, 130762), (620, 65381)]