20219985280

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{20663}}^1$

素因数の和:20832

約数の個数: 128

約数和(自身を含む): 53114745600

約数和(自身を除く): 32894760320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 139, 160, 176, 220, 278, 320, 352, 440, 556, 640, 695, 704, 880, 1112, 1390, 1408, 1529, 1760, 2224, 2780, 3058, 3520, 4448, 5560, 6116, 7040, 7645, 8896, 11120, 12232, 15290, 17792, 20663, 22240, 24464, 30580, 41326, 44480, 48928, 61160, 82652, 88960, 97856, 103315, 122320, 165304, 195712, 206630, 227293, 244640, 330608, 413260, 454586, 489280, 661216, 826520, 909172, 978560, 1136465, 1322432, 1653040, 1818344, 2272930, 2644864, 2872157, 3306080, 3636688, 4545860, 5744314, 6612160, 7273376, 9091720, 11488628, 13224320, 14360785, 14546752, 18183440, 22977256, 28721570, 29093504, 31593727, 36366880, 45954512, 57443140, 63187454, 72733760, 91909024, 114886280, 126374908, 145467520, 157968635, 183818048, 229772560, 252749816, 315937270, 367636096, 459545120, 505499632, 631874540, 919090240, 1010999264, 1263749080, 1838180480, 2021998528, 2527498160, 4043997056, 5054996320, 10109992640, 20219985280]

約数ペア:

[(1, 20219985280), (2, 10109992640), (4, 5054996320), (5, 4043997056), (8, 2527498160), (10, 2021998528), (11, 1838180480), (16, 1263749080), (20, 1010999264), (22, 919090240), (32, 631874540), (40, 505499632), (44, 459545120), (55, 367636096), (64, 315937270), (80, 252749816), (88, 229772560), (110, 183818048), (128, 157968635), (139, 145467520), (160, 126374908), (176, 114886280), (220, 91909024), (278, 72733760), (320, 63187454), (352, 57443140), (440, 45954512), (556, 36366880), (640, 31593727), (695, 29093504), (704, 28721570), (880, 22977256), (1112, 18183440), (1390, 14546752), (1408, 14360785), (1529, 13224320), (1760, 11488628), (2224, 9091720), (2780, 7273376), (3058, 6612160), (3520, 5744314), (4448, 4545860), (5560, 3636688), (6116, 3306080), (7040, 2872157), (7645, 2644864), (8896, 2272930), (11120, 1818344), (12232, 1653040), (15290, 1322432), (17792, 1136465), (20663, 978560), (22240, 909172), (24464, 826520), (30580, 661216), (41326, 489280), (44480, 454586), (48928, 413260), (61160, 330608), (82652, 244640), (88960, 227293), (97856, 206630), (103315, 195712), (122320, 165304)]