20251875

素因数分解:

$3^1\times 5^4\times 7^1\times {\mathrm{1543}}^1$

素因数の和:1573

約数の個数: 40

約数和(自身を含む): 38587648

約数和(自身を除く): 18335773

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 525, 625, 875, 1543, 1875, 2625, 4375, 4629, 7715, 10801, 13125, 23145, 32403, 38575, 54005, 115725, 162015, 192875, 270025, 578625, 810075, 964375, 1350125, 2893125, 4050375, 6750625, 20251875]

約数ペア:

[(1, 20251875), (3, 6750625), (5, 4050375), (7, 2893125), (15, 1350125), (21, 964375), (25, 810075), (35, 578625), (75, 270025), (105, 192875), (125, 162015), (175, 115725), (375, 54005), (525, 38575), (625, 32403), (875, 23145), (1543, 13125), (1875, 10801), (2625, 7715), (4375, 4629)]