20962365125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{678943}}^1$

素因数の和:678990

約数の個数: 32

約数和(自身を含む): 29656273920

約数和(自身を除く): 8693908795

約数列:

[1, 5, 13, 19, 25, 65, 95, 125, 247, 325, 475, 1235, 1625, 2375, 6175, 30875, 678943, 3394715, 8826259, 12899917, 16973575, 44131295, 64499585, 84867875, 167698921, 220656475, 322497925, 838494605, 1103282375, 1612489625, 4192473025, 20962365125]

約数ペア:

[(1, 20962365125), (5, 4192473025), (13, 1612489625), (19, 1103282375), (25, 838494605), (65, 322497925), (95, 220656475), (125, 167698921), (247, 84867875), (325, 64499585), (475, 44131295), (1235, 16973575), (1625, 12899917), (2375, 8826259), (6175, 3394715), (30875, 678943)]