129746780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{209269}}^1$

素因数の和:209309

約数の個数: 24

約数和(自身を含む): 281258880

約数和(自身を除く): 151512100

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 209269, 418538, 837076, 1046345, 2092690, 4185380, 6487339, 12974678, 25949356, 32436695, 64873390, 129746780]

約数ペア:

[(1, 129746780), (2, 64873390), (4, 32436695), (5, 25949356), (10, 12974678), (20, 6487339), (31, 4185380), (62, 2092690), (124, 1046345), (155, 837076), (310, 418538), (620, 209269)]