18057620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128983}}^1$

素因数の和:128999

約数の個数: 24

約数和(自身を含む): 43338624

約数和(自身を除く): 25281004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128983, 257966, 515932, 644915, 902881, 1289830, 1805762, 2579660, 3611524, 4514405, 9028810, 18057620]

約数ペア:

[(1, 18057620), (2, 9028810), (4, 4514405), (5, 3611524), (7, 2579660), (10, 1805762), (14, 1289830), (20, 902881), (28, 644915), (35, 515932), (70, 257966), (140, 128983)]