18721880

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{7933}}^1$

素因数の和:8003

約数の個数: 32

約数和(自身を含む): 42843600

約数和(自身を除く): 24121720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 7933, 15866, 31732, 39665, 63464, 79330, 158660, 317320, 468047, 936094, 1872188, 2340235, 3744376, 4680470, 9360940, 18721880]

約数ペア:

[(1, 18721880), (2, 9360940), (4, 4680470), (5, 3744376), (8, 2340235), (10, 1872188), (20, 936094), (40, 468047), (59, 317320), (118, 158660), (236, 79330), (295, 63464), (472, 39665), (590, 31732), (1180, 15866), (2360, 7933)]