31222640

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{881}}^1$

素因数の和:1337

約数の個数: 40

約数和(自身を含む): 72839088

約数和(自身を除く): 41616448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 881, 886, 1762, 1772, 2215, 3524, 3544, 4405, 4430, 7048, 7088, 8810, 8860, 14096, 17620, 17720, 35240, 35440, 70480, 390283, 780566, 1561132, 1951415, 3122264, 3902830, 6244528, 7805660, 15611320, 31222640]

約数ペア:

[(1, 31222640), (2, 15611320), (4, 7805660), (5, 6244528), (8, 3902830), (10, 3122264), (16, 1951415), (20, 1561132), (40, 780566), (80, 390283), (443, 70480), (881, 35440), (886, 35240), (1762, 17720), (1772, 17620), (2215, 14096), (3524, 8860), (3544, 8810), (4405, 7088), (4430, 7048)]