20425625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{2971}}^1$

素因数の和:3002

約数の個数: 20

約数和(自身を含む): 27853584

約数和(自身を除く): 7427959

約数列:

[1, 5, 11, 25, 55, 125, 275, 625, 1375, 2971, 6875, 14855, 32681, 74275, 163405, 371375, 817025, 1856875, 4085125, 20425625]

約数ペア:

[(1, 20425625), (5, 4085125), (11, 1856875), (25, 817025), (55, 371375), (125, 163405), (275, 74275), (625, 32681), (1375, 14855), (2971, 6875)]