205486580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{790333}}^1$

素因数の和:790355

約数の個数: 24

約数和(自身を含む): 464716392

約数和(自身を除く): 259229812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 790333, 1580666, 3161332, 3951665, 7903330, 10274329, 15806660, 20548658, 41097316, 51371645, 102743290, 205486580]

約数ペア:

[(1, 205486580), (2, 102743290), (4, 51371645), (5, 41097316), (10, 20548658), (13, 15806660), (20, 10274329), (26, 7903330), (52, 3951665), (65, 3161332), (130, 1580666), (260, 790333)]