108940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 246960

約数和(自身を除く): 138020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 419, 838, 1676, 2095, 4190, 5447, 8380, 10894, 21788, 27235, 54470, 108940]

約数ペア:

[(1, 108940), (2, 54470), (4, 27235), (5, 21788), (10, 10894), (13, 8380), (20, 5447), (26, 4190), (52, 2095), (65, 1676), (130, 838), (260, 419)]