20178562870

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{451523}}^1$

素因数の和:451680

約数の個数: 32

約数和(自身を含む): 37548735840

約数和(自身を除く): 17370172970

約数列:

[1, 2, 5, 10, 41, 82, 109, 205, 218, 410, 545, 1090, 4469, 8938, 22345, 44690, 451523, 903046, 2257615, 4515230, 18512443, 37024886, 49216007, 92562215, 98432014, 185124430, 246080035, 492160070, 2017856287, 4035712574, 10089281435, 20178562870]

約数ペア:

[(1, 20178562870), (2, 10089281435), (5, 4035712574), (10, 2017856287), (41, 492160070), (82, 246080035), (109, 185124430), (205, 98432014), (218, 92562215), (410, 49216007), (545, 37024886), (1090, 18512443), (4469, 4515230), (8938, 2257615), (22345, 903046), (44690, 451523)]