20262664

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1223}}^1$

素因数の和:1357

約数の個数: 32

約数和(自身を含む): 40392000

約数和(自身を除く): 20129336

約数列:

[1, 2, 4, 8, 19, 38, 76, 109, 152, 218, 436, 872, 1223, 2071, 2446, 4142, 4892, 8284, 9784, 16568, 23237, 46474, 92948, 133307, 185896, 266614, 533228, 1066456, 2532833, 5065666, 10131332, 20262664]

約数ペア:

[(1, 20262664), (2, 10131332), (4, 5065666), (8, 2532833), (19, 1066456), (38, 533228), (76, 266614), (109, 185896), (152, 133307), (218, 92948), (436, 46474), (872, 23237), (1223, 16568), (2071, 9784), (2446, 8284), (4142, 4892)]