90141640

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{5087}}^1$

素因数の和:5541

約数の個数: 32

約数和(自身を含む): 203316480

約数和(自身を除く): 113174840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1772, 2215, 3544, 4430, 5087, 8860, 10174, 17720, 20348, 25435, 40696, 50870, 101740, 203480, 2253541, 4507082, 9014164, 11267705, 18028328, 22535410, 45070820, 90141640]

約数ペア:

[(1, 90141640), (2, 45070820), (4, 22535410), (5, 18028328), (8, 11267705), (10, 9014164), (20, 4507082), (40, 2253541), (443, 203480), (886, 101740), (1772, 50870), (2215, 40696), (3544, 25435), (4430, 20348), (5087, 17720), (8860, 10174)]