13320980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8431}}^1$

素因数の和:8519

約数の個数: 24

約数和(自身を含む): 28331520

約数和(自身を除く): 15010540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 8431, 16862, 33724, 42155, 84310, 168620, 666049, 1332098, 2664196, 3330245, 6660490, 13320980]

約数ペア:

[(1, 13320980), (2, 6660490), (4, 3330245), (5, 2664196), (10, 1332098), (20, 666049), (79, 168620), (158, 84310), (316, 42155), (395, 33724), (790, 16862), (1580, 8431)]