81331222

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1\times {\mathrm{239}}^1$

素因数の和:580

約数の個数: 32

約数和(自身を含む): 141926400

約数和(自身を除く): 60595178

約数列:

[1, 2, 7, 14, 109, 218, 223, 239, 446, 478, 763, 1526, 1561, 1673, 3122, 3346, 24307, 26051, 48614, 52102, 53297, 106594, 170149, 182357, 340298, 364714, 373079, 746158, 5809373, 11618746, 40665611, 81331222]

約数ペア:

[(1, 81331222), (2, 40665611), (7, 11618746), (14, 5809373), (109, 746158), (218, 373079), (223, 364714), (239, 340298), (446, 182357), (478, 170149), (763, 106594), (1526, 53297), (1561, 52102), (1673, 48614), (3122, 26051), (3346, 24307)]