161689960

素因数分解:

$2^3\times 5^1\times {\mathrm{4042249}}^1$

素因数の和:4042260

約数の個数: 16

約数和(自身を含む): 363802500

約数和(自身を除く): 202112540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4042249, 8084498, 16168996, 20211245, 32337992, 40422490, 80844980, 161689960]

約数ペア:

[(1, 161689960), (2, 80844980), (4, 40422490), (5, 32337992), (8, 20211245), (10, 16168996), (20, 8084498), (40, 4042249)]