1299580

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{359}}^1$

素因数の和:549

約数の個数: 24

約数和(自身を含む): 2751840

約数和(自身を除く): 1452260

約数列:

[1, 2, 4, 5, 10, 20, 181, 359, 362, 718, 724, 905, 1436, 1795, 1810, 3590, 3620, 7180, 64979, 129958, 259916, 324895, 649790, 1299580]

約数ペア:

[(1, 1299580), (2, 649790), (4, 324895), (5, 259916), (10, 129958), (20, 64979), (181, 7180), (359, 3620), (362, 3590), (718, 1810), (724, 1795), (905, 1436)]