161420445

素因数分解:

$3^4\times 5^1\times {\mathrm{398569}}^1$

素因数の和:398586

約数の個数: 20

約数和(自身を含む): 289361820

約数和(自身を除く): 127941375

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 398569, 1195707, 1992845, 3587121, 5978535, 10761363, 17935605, 32284089, 53806815, 161420445]

約数ペア:

[(1, 161420445), (3, 53806815), (5, 32284089), (9, 17935605), (15, 10761363), (27, 5978535), (45, 3587121), (81, 1992845), (135, 1195707), (405, 398569)]