28250420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128411}}^1$

素因数の和:128431

約数の個数: 24

約数和(自身を含む): 64719648

約数和(自身を除く): 36469228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128411, 256822, 513644, 642055, 1284110, 1412521, 2568220, 2825042, 5650084, 7062605, 14125210, 28250420]

約数ペア:

[(1, 28250420), (2, 14125210), (4, 7062605), (5, 5650084), (10, 2825042), (11, 2568220), (20, 1412521), (22, 1284110), (44, 642055), (55, 513644), (110, 256822), (220, 128411)]