20512662485

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{259211}}^1$

素因数の和:259266

約数の個数: 48

約数和(自身を含む): 31914181440

約数和(自身を除く): 11401518955

約数列:

[1, 5, 7, 17, 19, 35, 49, 85, 95, 119, 133, 245, 323, 595, 665, 833, 931, 1615, 2261, 4165, 4655, 11305, 15827, 79135, 259211, 1296055, 1814477, 4406587, 4925009, 9072385, 12701339, 22032935, 24625045, 30846109, 34475063, 63506695, 83725153, 154230545, 172375315, 215922763, 241325441, 418625765, 586076071, 1079613815, 1206627205, 2930380355, 4102532497, 20512662485]

約数ペア:

[(1, 20512662485), (5, 4102532497), (7, 2930380355), (17, 1206627205), (19, 1079613815), (35, 586076071), (49, 418625765), (85, 241325441), (95, 215922763), (119, 172375315), (133, 154230545), (245, 83725153), (323, 63506695), (595, 34475063), (665, 30846109), (833, 24625045), (931, 22032935), (1615, 12701339), (2261, 9072385), (4165, 4925009), (4655, 4406587), (11305, 1814477), (15827, 1296055), (79135, 259211)]