5390180

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1489}}^1$

素因数の和:1679

約数の個数: 24

約数和(自身を含む): 11389560

約数和(自身を除く): 5999380

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1489, 1810, 2978, 3620, 5956, 7445, 14890, 29780, 269509, 539018, 1078036, 1347545, 2695090, 5390180]

約数ペア:

[(1, 5390180), (2, 2695090), (4, 1347545), (5, 1078036), (10, 539018), (20, 269509), (181, 29780), (362, 14890), (724, 7445), (905, 5956), (1489, 3620), (1810, 2978)]