18405220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{54133}}^1$

素因数の和:54159

約数の個数: 24

約数和(自身を含む): 40925304

約数和(自身を除く): 22520084

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 54133, 108266, 216532, 270665, 541330, 920261, 1082660, 1840522, 3681044, 4601305, 9202610, 18405220]

約数ペア:

[(1, 18405220), (2, 9202610), (4, 4601305), (5, 3681044), (10, 1840522), (17, 1082660), (20, 920261), (34, 541330), (68, 270665), (85, 216532), (170, 108266), (340, 54133)]