131411480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{105977}}^1$

素因数の和:106019

約数の個数: 32

約数和(自身を含む): 305216640

約数和(自身を除く): 173805160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 105977, 211954, 423908, 529885, 847816, 1059770, 2119540, 3285287, 4239080, 6570574, 13141148, 16426435, 26282296, 32852870, 65705740, 131411480]

約数ペア:

[(1, 131411480), (2, 65705740), (4, 32852870), (5, 26282296), (8, 16426435), (10, 13141148), (20, 6570574), (31, 4239080), (40, 3285287), (62, 2119540), (124, 1059770), (155, 847816), (248, 529885), (310, 423908), (620, 211954), (1240, 105977)]