51300880

素因数分解:

$2^4\times 5^1\times {\mathrm{641261}}^1$

素因数の和:641274

約数の個数: 20

約数和(自身を含む): 119274732

約数和(自身を除く): 67973852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641261, 1282522, 2565044, 3206305, 5130088, 6412610, 10260176, 12825220, 25650440, 51300880]

約数ペア:

[(1, 51300880), (2, 25650440), (4, 12825220), (5, 10260176), (8, 6412610), (10, 5130088), (16, 3206305), (20, 2565044), (40, 1282522), (80, 641261)]