20734304895

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{2011}}^1$

素因数の和:2461

約数の個数: 96

約数和(自身を含む): 39171225600

約数和(自身を除く): 18436920705

約数列:

[1, 3, 5, 9, 15, 19, 31, 45, 57, 93, 95, 155, 171, 279, 285, 389, 465, 589, 855, 1167, 1395, 1767, 1945, 2011, 2945, 3501, 5301, 5835, 6033, 7391, 8835, 10055, 12059, 17505, 18099, 22173, 26505, 30165, 36177, 36955, 38209, 60295, 62341, 66519, 90495, 108531, 110865, 114627, 180885, 187023, 191045, 229121, 311705, 332595, 343881, 542655, 561069, 573135, 687363, 782279, 935115, 1145605, 1184479, 1719405, 2062089, 2346837, 2805345, 3436815, 3553437, 3911395, 5922395, 7040511, 10310445, 10660311, 11734185, 14863301, 17767185, 24250649, 35202555, 44589903, 53301555, 72751947, 74316505, 121253245, 133769709, 218255841, 222949515, 363759735, 460762331, 668848545, 1091279205, 1382286993, 2303811655, 4146860979, 6911434965, 20734304895]

約数ペア:

[(1, 20734304895), (3, 6911434965), (5, 4146860979), (9, 2303811655), (15, 1382286993), (19, 1091279205), (31, 668848545), (45, 460762331), (57, 363759735), (93, 222949515), (95, 218255841), (155, 133769709), (171, 121253245), (279, 74316505), (285, 72751947), (389, 53301555), (465, 44589903), (589, 35202555), (855, 24250649), (1167, 17767185), (1395, 14863301), (1767, 11734185), (1945, 10660311), (2011, 10310445), (2945, 7040511), (3501, 5922395), (5301, 3911395), (5835, 3553437), (6033, 3436815), (7391, 2805345), (8835, 2346837), (10055, 2062089), (12059, 1719405), (17505, 1184479), (18099, 1145605), (22173, 935115), (26505, 782279), (30165, 687363), (36177, 573135), (36955, 561069), (38209, 542655), (60295, 343881), (62341, 332595), (66519, 311705), (90495, 229121), (108531, 191045), (110865, 187023), (114627, 180885)]