31496140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121139}}^1$

素因数の和:121161

約数の個数: 24

約数和(自身を含む): 71230320

約数和(自身を除く): 39734180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 121139, 242278, 484556, 605695, 1211390, 1574807, 2422780, 3149614, 6299228, 7874035, 15748070, 31496140]

約数ペア:

[(1, 31496140), (2, 15748070), (4, 7874035), (5, 6299228), (10, 3149614), (13, 2422780), (20, 1574807), (26, 1211390), (52, 605695), (65, 484556), (130, 242278), (260, 121139)]