19889620

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{14843}}^1$

素因数の和:14919

約数の個数: 24

約数和(自身を含む): 42394464

約数和(自身を除く): 22504844

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 14843, 29686, 59372, 74215, 148430, 296860, 994481, 1988962, 3977924, 4972405, 9944810, 19889620]

約数ペア:

[(1, 19889620), (2, 9944810), (4, 4972405), (5, 3977924), (10, 1988962), (20, 994481), (67, 296860), (134, 148430), (268, 74215), (335, 59372), (670, 29686), (1340, 14843)]