80487080

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{11117}}^1$

素因数の和:11309

約数の個数: 32

約数和(自身を含む): 182112840

約数和(自身を除く): 101625760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 11117, 22234, 44468, 55585, 88936, 111170, 222340, 444680, 2012177, 4024354, 8048708, 10060885, 16097416, 20121770, 40243540, 80487080]

約数ペア:

[(1, 80487080), (2, 40243540), (4, 20121770), (5, 16097416), (8, 10060885), (10, 8048708), (20, 4024354), (40, 2012177), (181, 444680), (362, 222340), (724, 111170), (905, 88936), (1448, 55585), (1810, 44468), (3620, 22234), (7240, 11117)]