20187844335

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{859}}^1\times {\mathrm{991}}^1$

素因数の和:1909

約数の個数: 96

約数和(自身を含む): 38328975360

約数和(自身を除く): 18141131025

約数列:

[1, 3, 5, 9, 15, 17, 31, 45, 51, 85, 93, 153, 155, 255, 279, 465, 527, 765, 859, 991, 1395, 1581, 2577, 2635, 2973, 4295, 4743, 4955, 7731, 7905, 8919, 12885, 14603, 14865, 16847, 23715, 26629, 30721, 38655, 43809, 44595, 50541, 73015, 79887, 84235, 92163, 131427, 133145, 151623, 153605, 219045, 239661, 252705, 276489, 399435, 452693, 460815, 522257, 657135, 758115, 851269, 1198305, 1358079, 1382445, 1566771, 2263465, 2553807, 2611285, 4074237, 4256345, 4700313, 6790395, 7661421, 7833855, 12769035, 14471573, 20371185, 23501565, 26389339, 38307105, 43414719, 72357865, 79168017, 130244157, 131946695, 217073595, 237504051, 395840085, 448618763, 651220785, 1187520255, 1345856289, 2243093815, 4037568867, 6729281445, 20187844335]

約数ペア:

[(1, 20187844335), (3, 6729281445), (5, 4037568867), (9, 2243093815), (15, 1345856289), (17, 1187520255), (31, 651220785), (45, 448618763), (51, 395840085), (85, 237504051), (93, 217073595), (153, 131946695), (155, 130244157), (255, 79168017), (279, 72357865), (465, 43414719), (527, 38307105), (765, 26389339), (859, 23501565), (991, 20371185), (1395, 14471573), (1581, 12769035), (2577, 7833855), (2635, 7661421), (2973, 6790395), (4295, 4700313), (4743, 4256345), (4955, 4074237), (7731, 2611285), (7905, 2553807), (8919, 2263465), (12885, 1566771), (14603, 1382445), (14865, 1358079), (16847, 1198305), (23715, 851269), (26629, 758115), (30721, 657135), (38655, 522257), (43809, 460815), (44595, 452693), (50541, 399435), (73015, 276489), (79887, 252705), (84235, 239661), (92163, 219045), (131427, 153605), (133145, 151623)]