18878660

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{5791}}^1$

素因数の和:5963

約数の個数: 24

約数和(自身を含む): 39895296

約数和(自身を除く): 21016636

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 5791, 11582, 23164, 28955, 57910, 115820, 943933, 1887866, 3775732, 4719665, 9439330, 18878660]

約数ペア:

[(1, 18878660), (2, 9439330), (4, 4719665), (5, 3775732), (10, 1887866), (20, 943933), (163, 115820), (326, 57910), (652, 28955), (815, 23164), (1630, 11582), (3260, 5791)]