12642890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{7481}}^1$

素因数の和:7514

約数の個数: 24

約数和(自身を含む): 24645708

約数和(自身を除く): 12002818

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 7481, 14962, 37405, 74810, 97253, 194506, 486265, 972530, 1264289, 2528578, 6321445, 12642890]

約数ペア:

[(1, 12642890), (2, 6321445), (5, 2528578), (10, 1264289), (13, 972530), (26, 486265), (65, 194506), (130, 97253), (169, 74810), (338, 37405), (845, 14962), (1690, 7481)]