30815240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{24851}}^1$

素因数の和:24893

約数の個数: 32

約数和(自身を含む): 71573760

約数和(自身を除く): 40758520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 24851, 49702, 99404, 124255, 198808, 248510, 497020, 770381, 994040, 1540762, 3081524, 3851905, 6163048, 7703810, 15407620, 30815240]

約数ペア:

[(1, 30815240), (2, 15407620), (4, 7703810), (5, 6163048), (8, 3851905), (10, 3081524), (20, 1540762), (31, 994040), (40, 770381), (62, 497020), (124, 248510), (155, 198808), (248, 124255), (310, 99404), (620, 49702), (1240, 24851)]