18238280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26821}}^1$

素因数の和:26849

約数の個数: 32

約数和(自身を含む): 43451640

約数和(自身を除く): 25213360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 26821, 53642, 107284, 134105, 214568, 268210, 455957, 536420, 911914, 1072840, 1823828, 2279785, 3647656, 4559570, 9119140, 18238280]

約数ペア:

[(1, 18238280), (2, 9119140), (4, 4559570), (5, 3647656), (8, 2279785), (10, 1823828), (17, 1072840), (20, 911914), (34, 536420), (40, 455957), (68, 268210), (85, 214568), (136, 134105), (170, 107284), (340, 53642), (680, 26821)]