80676380

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{51061}}^1$

素因数の和:51149

約数の個数: 24

約数和(自身を含む): 171568320

約数和(自身を除く): 90891940

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 51061, 102122, 204244, 255305, 510610, 1021220, 4033819, 8067638, 16135276, 20169095, 40338190, 80676380]

約数ペア:

[(1, 80676380), (2, 40338190), (4, 20169095), (5, 16135276), (10, 8067638), (20, 4033819), (79, 1021220), (158, 510610), (316, 255305), (395, 204244), (790, 102122), (1580, 51061)]