90011440

素因数分解:

$2^4\times 5^1\times {\mathrm{1125143}}^1$

素因数の和:1125156

約数の個数: 20

約数和(自身を含む): 209276784

約数和(自身を除く): 119265344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1125143, 2250286, 4500572, 5625715, 9001144, 11251430, 18002288, 22502860, 45005720, 90011440]

約数ペア:

[(1, 90011440), (2, 45005720), (4, 22502860), (5, 18002288), (8, 11251430), (10, 9001144), (16, 5625715), (20, 4500572), (40, 2250286), (80, 1125143)]