20023125

素因数分解:

$3^1\times 5^4\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:263

約数の個数: 40

約数和(自身を含む): 34114080

約数和(自身を除く): 14090955

約数列:

[1, 3, 5, 15, 25, 59, 75, 125, 177, 181, 295, 375, 543, 625, 885, 905, 1475, 1875, 2715, 4425, 4525, 7375, 10679, 13575, 22125, 22625, 32037, 36875, 53395, 67875, 110625, 113125, 160185, 266975, 339375, 800925, 1334875, 4004625, 6674375, 20023125]

約数ペア:

[(1, 20023125), (3, 6674375), (5, 4004625), (15, 1334875), (25, 800925), (59, 339375), (75, 266975), (125, 160185), (177, 113125), (181, 110625), (295, 67875), (375, 53395), (543, 36875), (625, 32037), (885, 22625), (905, 22125), (1475, 13575), (1875, 10679), (2715, 7375), (4425, 4525)]