31889240

素因数分解:

$2^3\times 5^1\times {\mathrm{787}}^1\times {\mathrm{1013}}^1$

素因数の和:1811

約数の個数: 32

約数和(自身を含む): 71912880

約数和(自身を除く): 40023640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 787, 1013, 1574, 2026, 3148, 3935, 4052, 5065, 6296, 7870, 8104, 10130, 15740, 20260, 31480, 40520, 797231, 1594462, 3188924, 3986155, 6377848, 7972310, 15944620, 31889240]

約数ペア:

[(1, 31889240), (2, 15944620), (4, 7972310), (5, 6377848), (8, 3986155), (10, 3188924), (20, 1594462), (40, 797231), (787, 40520), (1013, 31480), (1574, 20260), (2026, 15740), (3148, 10130), (3935, 8104), (4052, 7870), (5065, 6296)]