72241640

素因数分解:

$2^3\times 5^1\times {\mathrm{1806041}}^1$

素因数の和:1806052

約数の個数: 16

約数和(自身を含む): 162543780

約数和(自身を除く): 90302140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1806041, 3612082, 7224164, 9030205, 14448328, 18060410, 36120820, 72241640]

約数ペア:

[(1, 72241640), (2, 36120820), (4, 18060410), (5, 14448328), (8, 9030205), (10, 7224164), (20, 3612082), (40, 1806041)]