1040780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4003}}^1$

素因数の和:4025

約数の個数: 24

約数和(自身を含む): 2354352

約数和(自身を除く): 1313572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4003, 8006, 16012, 20015, 40030, 52039, 80060, 104078, 208156, 260195, 520390, 1040780]

約数ペア:

[(1, 1040780), (2, 520390), (4, 260195), (5, 208156), (10, 104078), (13, 80060), (20, 52039), (26, 40030), (52, 20015), (65, 16012), (130, 8006), (260, 4003)]