90505840

素因数分解:

$2^4\times 5^1\times {\mathrm{1131323}}^1$

素因数の和:1131336

約数の個数: 20

約数和(自身を含む): 210426264

約数和(自身を除く): 119920424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1131323, 2262646, 4525292, 5656615, 9050584, 11313230, 18101168, 22626460, 45252920, 90505840]

約数ペア:

[(1, 90505840), (2, 45252920), (4, 22626460), (5, 18101168), (8, 11313230), (10, 9050584), (16, 5656615), (20, 4525292), (40, 2262646), (80, 1131323)]