42787780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43661}}^1$

素因数の和:43684

約数の個数: 36

約数和(自身を含む): 104526828

約数和(自身を除く): 61739048

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 43661, 87322, 174644, 218305, 305627, 436610, 611254, 873220, 1222508, 1528135, 2139389, 3056270, 4278778, 6112540, 8557556, 10696945, 21393890, 42787780]

約数ペア:

[(1, 42787780), (2, 21393890), (4, 10696945), (5, 8557556), (7, 6112540), (10, 4278778), (14, 3056270), (20, 2139389), (28, 1528135), (35, 1222508), (49, 873220), (70, 611254), (98, 436610), (140, 305627), (196, 218305), (245, 174644), (490, 87322), (980, 43661)]