668545955

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{691}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 1022388480

約数和(自身を除く): 353842525

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 359, 385, 539, 691, 1795, 2513, 2695, 3455, 3949, 4837, 7601, 12565, 17591, 19745, 24185, 27643, 33859, 38005, 53207, 87955, 138215, 169295, 193501, 248069, 266035, 372449, 967505, 1240345, 1736483, 1862245, 2728759, 8682415, 12155381, 13643795, 19101313, 60776905, 95506565, 133709191, 668545955]

約数ペア:

[(1, 668545955), (5, 133709191), (7, 95506565), (11, 60776905), (35, 19101313), (49, 13643795), (55, 12155381), (77, 8682415), (245, 2728759), (359, 1862245), (385, 1736483), (539, 1240345), (691, 967505), (1795, 372449), (2513, 266035), (2695, 248069), (3455, 193501), (3949, 169295), (4837, 138215), (7601, 87955), (12565, 53207), (17591, 38005), (19745, 33859), (24185, 27643)]