18873940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23017}}^1$

素因数の和:23067

約数の個数: 24

約数和(自身を含む): 40603752

約数和(自身を除く): 21729812

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 23017, 46034, 92068, 115085, 230170, 460340, 943697, 1887394, 3774788, 4718485, 9436970, 18873940]

約数ペア:

[(1, 18873940), (2, 9436970), (4, 4718485), (5, 3774788), (10, 1887394), (20, 943697), (41, 460340), (82, 230170), (164, 115085), (205, 92068), (410, 46034), (820, 23017)]