51271780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{366227}}^1$

素因数の和:366243

約数の個数: 24

約数和(自身を含む): 123052608

約数和(自身を除く): 71780828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 366227, 732454, 1464908, 1831135, 2563589, 3662270, 5127178, 7324540, 10254356, 12817945, 25635890, 51271780]

約数ペア:

[(1, 51271780), (2, 25635890), (4, 12817945), (5, 10254356), (7, 7324540), (10, 5127178), (14, 3662270), (20, 2563589), (28, 1831135), (35, 1464908), (70, 732454), (140, 366227)]