51530420

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{12211}}^1$

素因数の和:12431

約数の個数: 24

約数和(自身を含む): 108735648

約数和(自身を除く): 57205228

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 12211, 24422, 48844, 61055, 122110, 244220, 2576521, 5153042, 10306084, 12882605, 25765210, 51530420]

約数ペア:

[(1, 51530420), (2, 25765210), (4, 12882605), (5, 10306084), (10, 5153042), (20, 2576521), (211, 244220), (422, 122110), (844, 61055), (1055, 48844), (2110, 24422), (4220, 12211)]