20215076375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{569}}^1\times {\mathrm{21863}}^1$

素因数の和:22460

約数の個数: 32

約数和(自身を含む): 27218056320

約数和(自身を除く): 7002979945

約数列:

[1, 5, 13, 25, 65, 125, 325, 569, 1625, 2845, 7397, 14225, 21863, 36985, 71125, 109315, 184925, 284219, 546575, 924625, 1421095, 2732875, 7105475, 12440047, 35527375, 62200235, 161720611, 311001175, 808603055, 1555005875, 4043015275, 20215076375]

約数ペア:

[(1, 20215076375), (5, 4043015275), (13, 1555005875), (25, 808603055), (65, 311001175), (125, 161720611), (325, 62200235), (569, 35527375), (1625, 12440047), (2845, 7105475), (7397, 2732875), (14225, 1421095), (21863, 924625), (36985, 546575), (71125, 284219), (109315, 184925)]