672739990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{12841}}^1$

素因数の和:12905

約数の個数: 48

約数和(自身を含む): 1353649536

約数和(自身を除く): 680909546

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 169, 310, 338, 403, 806, 845, 1690, 2015, 4030, 5239, 10478, 12841, 25682, 26195, 52390, 64205, 128410, 166933, 333866, 398071, 796142, 834665, 1669330, 1990355, 2170129, 3980710, 4340258, 5174923, 10349846, 10850645, 21701290, 25874615, 51749230, 67273999, 134547998, 336369995, 672739990]

約数ペア:

[(1, 672739990), (2, 336369995), (5, 134547998), (10, 67273999), (13, 51749230), (26, 25874615), (31, 21701290), (62, 10850645), (65, 10349846), (130, 5174923), (155, 4340258), (169, 3980710), (310, 2170129), (338, 1990355), (403, 1669330), (806, 834665), (845, 796142), (1690, 398071), (2015, 333866), (4030, 166933), (5239, 128410), (10478, 64205), (12841, 52390), (25682, 26195)]