12986350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19979}}^1$

素因数の和:20004

約数の個数: 24

約数和(自身を含む): 26013960

約数和(自身を除く): 13027610

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 19979, 39958, 99895, 199790, 259727, 499475, 519454, 998950, 1298635, 2597270, 6493175, 12986350]

約数ペア:

[(1, 12986350), (2, 6493175), (5, 2597270), (10, 1298635), (13, 998950), (25, 519454), (26, 499475), (50, 259727), (65, 199790), (130, 99895), (325, 39958), (650, 19979)]