20009475

素因数分解:

$3^2\times 5^2\times {\mathrm{113}}^1\times {\mathrm{787}}^1$

素因数の和:916

約数の個数: 36

約数和(自身を含む): 36202296

約数和(自身を除く): 16192821

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 113, 225, 339, 565, 787, 1017, 1695, 2361, 2825, 3935, 5085, 7083, 8475, 11805, 19675, 25425, 35415, 59025, 88931, 177075, 266793, 444655, 800379, 1333965, 2223275, 4001895, 6669825, 20009475]

約数ペア:

[(1, 20009475), (3, 6669825), (5, 4001895), (9, 2223275), (15, 1333965), (25, 800379), (45, 444655), (75, 266793), (113, 177075), (225, 88931), (339, 59025), (565, 35415), (787, 25425), (1017, 19675), (1695, 11805), (2361, 8475), (2825, 7083), (3935, 5085)]