18868540

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{14081}}^1$

素因数の和:14157

約数の個数: 24

約数和(自身を含む): 40218192

約数和(自身を除く): 21349652

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 14081, 28162, 56324, 70405, 140810, 281620, 943427, 1886854, 3773708, 4717135, 9434270, 18868540]

約数ペア:

[(1, 18868540), (2, 9434270), (4, 4717135), (5, 3773708), (10, 1886854), (20, 943427), (67, 281620), (134, 140810), (268, 70405), (335, 56324), (670, 28162), (1340, 14081)]