18618680

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2437}}^1$

素因数の和:2639

約数の個数: 32

約数和(自身を含む): 42128640

約数和(自身を除く): 23509960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 2437, 3820, 4874, 7640, 9748, 12185, 19496, 24370, 48740, 97480, 465467, 930934, 1861868, 2327335, 3723736, 4654670, 9309340, 18618680]

約数ペア:

[(1, 18618680), (2, 9309340), (4, 4654670), (5, 3723736), (8, 2327335), (10, 1861868), (20, 930934), (40, 465467), (191, 97480), (382, 48740), (764, 24370), (955, 19496), (1528, 12185), (1910, 9748), (2437, 7640), (3820, 4874)]