668397694

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1\times {\mathrm{439}}^1$

素因数の和:952

約数の個数: 32

約数和(自身を含む): 1070784000

約数和(自身を除く): 402386306

約数列:

[1, 2, 19, 38, 103, 206, 389, 439, 778, 878, 1957, 3914, 7391, 8341, 14782, 16682, 40067, 45217, 80134, 90434, 170771, 341542, 761273, 859123, 1522546, 1718246, 3244649, 6489298, 17589413, 35178826, 334198847, 668397694]

約数ペア:

[(1, 668397694), (2, 334198847), (19, 35178826), (38, 17589413), (103, 6489298), (206, 3244649), (389, 1718246), (439, 1522546), (778, 859123), (878, 761273), (1957, 341542), (3914, 170771), (7391, 90434), (8341, 80134), (14782, 45217), (16682, 40067)]