51880420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89449}}^1$

素因数の和:89487

約数の個数: 24

約数和(自身を含む): 112707000

約数和(自身を除く): 60826580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 89449, 178898, 357796, 447245, 894490, 1788980, 2594021, 5188042, 10376084, 12970105, 25940210, 51880420]

約数ペア:

[(1, 51880420), (2, 25940210), (4, 12970105), (5, 10376084), (10, 5188042), (20, 2594021), (29, 1788980), (58, 894490), (116, 447245), (145, 357796), (290, 178898), (580, 89449)]