20364375

素因数分解:

$3^1\times 5^4\times {\mathrm{10861}}^1$

素因数の和:10884

約数の個数: 20

約数和(自身を含む): 33932888

約数和(自身を除く): 13568513

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 10861, 32583, 54305, 162915, 271525, 814575, 1357625, 4072875, 6788125, 20364375]

約数ペア:

[(1, 20364375), (3, 6788125), (5, 4072875), (15, 1357625), (25, 814575), (75, 271525), (125, 162915), (375, 54305), (625, 32583), (1875, 10861)]