8320780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{32003}}^1$

素因数の和:32025

約数の個数: 24

約数和(自身を含む): 18818352

約数和(自身を除く): 10497572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 32003, 64006, 128012, 160015, 320030, 416039, 640060, 832078, 1664156, 2080195, 4160390, 8320780]

約数ペア:

[(1, 8320780), (2, 4160390), (4, 2080195), (5, 1664156), (10, 832078), (13, 640060), (20, 416039), (26, 320030), (52, 160015), (65, 128012), (130, 64006), (260, 32003)]