402100070380

素因数分解:

$2^2\times 5^1\times {\mathrm{20105003519}}^1$

素因数の和:20105003528

約数の個数: 12

約数和(自身を含む): 844410147840

約数和(自身を除く): 442310077460

約数列:

[1, 2, 4, 5, 10, 20, 20105003519, 40210007038, 80420014076, 100525017595, 201050035190, 402100070380]

約数ペア:

[(1, 402100070380), (2, 201050035190), (4, 100525017595), (5, 80420014076), (10, 40210007038), (20, 20105003519)]