81311165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{65839}}^1$

素因数の和:65876

約数の個数: 16

約数和(自身を含む): 110611200

約数和(自身を除く): 29300035

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 65839, 329195, 855907, 1250941, 4279535, 6254705, 16262233, 81311165]

約数ペア:

[(1, 81311165), (5, 16262233), (13, 6254705), (19, 4279535), (65, 1250941), (95, 855907), (247, 329195), (1235, 65839)]