18351280

素因数分解:

$2^4\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1201}}^1$

素因数の和:1405

約数の個数: 40

約数和(自身を含む): 42925824

約数和(自身を除く): 24574544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 191, 382, 764, 955, 1201, 1528, 1910, 2402, 3056, 3820, 4804, 6005, 7640, 9608, 12010, 15280, 19216, 24020, 48040, 96080, 229391, 458782, 917564, 1146955, 1835128, 2293910, 3670256, 4587820, 9175640, 18351280]

約数ペア:

[(1, 18351280), (2, 9175640), (4, 4587820), (5, 3670256), (8, 2293910), (10, 1835128), (16, 1146955), (20, 917564), (40, 458782), (80, 229391), (191, 96080), (382, 48040), (764, 24020), (955, 19216), (1201, 15280), (1528, 12010), (1910, 9608), (2402, 7640), (3056, 6005), (3820, 4804)]