20568825

素因数分解:

$3^2\times 5^2\times {\mathrm{113}}^1\times {\mathrm{809}}^1$

素因数の和:938

約数の個数: 36

約数和(自身を含む): 37213020

約数和(自身を除く): 16644195

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 113, 225, 339, 565, 809, 1017, 1695, 2427, 2825, 4045, 5085, 7281, 8475, 12135, 20225, 25425, 36405, 60675, 91417, 182025, 274251, 457085, 822753, 1371255, 2285425, 4113765, 6856275, 20568825]

約数ペア:

[(1, 20568825), (3, 6856275), (5, 4113765), (9, 2285425), (15, 1371255), (25, 822753), (45, 457085), (75, 274251), (113, 182025), (225, 91417), (339, 60675), (565, 36405), (809, 25425), (1017, 20225), (1695, 12135), (2427, 8475), (2825, 7281), (4045, 5085)]