201554440

素因数分解:

$2^3\times 5^1\times {\mathrm{5038861}}^1$

素因数の和:5038872

約数の個数: 16

約数和(自身を含む): 453497580

約数和(自身を除く): 251943140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5038861, 10077722, 20155444, 25194305, 40310888, 50388610, 100777220, 201554440]

約数ペア:

[(1, 201554440), (2, 100777220), (4, 50388610), (5, 40310888), (8, 25194305), (10, 20155444), (20, 10077722), (40, 5038861)]