18977680

素因数分解:

$2^4\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1571}}^1$

素因数の和:1735

約数の個数: 40

約数和(自身を含む): 44443584

約数和(自身を除く): 25465904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 151, 302, 604, 755, 1208, 1510, 1571, 2416, 3020, 3142, 6040, 6284, 7855, 12080, 12568, 15710, 25136, 31420, 62840, 125680, 237221, 474442, 948884, 1186105, 1897768, 2372210, 3795536, 4744420, 9488840, 18977680]

約数ペア:

[(1, 18977680), (2, 9488840), (4, 4744420), (5, 3795536), (8, 2372210), (10, 1897768), (16, 1186105), (20, 948884), (40, 474442), (80, 237221), (151, 125680), (302, 62840), (604, 31420), (755, 25136), (1208, 15710), (1510, 12568), (1571, 12080), (2416, 7855), (3020, 6284), (3142, 6040)]