20101808

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30643}}^1$

素因数の和:30692

約数の個数: 20

約数和(自身を含む): 39898488

約数和(自身を除く): 19796680

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30643, 61286, 122572, 245144, 490288, 1256363, 2512726, 5025452, 10050904, 20101808]

約数ペア:

[(1, 20101808), (2, 10050904), (4, 5025452), (8, 2512726), (16, 1256363), (41, 490288), (82, 245144), (164, 122572), (328, 61286), (656, 30643)]