640775399

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^2$

素因数の和:503

約数の個数: 24

約数和(自身を含む): 748934400

約数和(自身を除く): 108159001

約数列:

[1, 11, 19, 79, 197, 209, 869, 1501, 2167, 3743, 15563, 16511, 38809, 41173, 171193, 295697, 426899, 737371, 3065911, 3252667, 8111081, 33725021, 58252309, 640775399]

約数ペア:

[(1, 640775399), (11, 58252309), (19, 33725021), (79, 8111081), (197, 3252667), (209, 3065911), (869, 737371), (1501, 426899), (2167, 295697), (3743, 171193), (15563, 41173), (16511, 38809)]