20218572872

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{701}}^1$

素因数の和:927

約数の個数: 128

約数和(自身を含む): 42578265600

約数和(自身を除く): 22359692728

約数列:

[1, 2, 4, 8, 17, 29, 34, 58, 68, 71, 103, 116, 136, 142, 206, 232, 284, 412, 493, 568, 701, 824, 986, 1207, 1402, 1751, 1972, 2059, 2414, 2804, 2987, 3502, 3944, 4118, 4828, 5608, 5974, 7004, 7313, 8236, 9656, 11917, 11948, 14008, 14626, 16472, 20329, 23834, 23896, 29252, 35003, 40658, 47668, 49771, 50779, 58504, 70006, 72203, 81316, 95336, 99542, 101558, 124321, 140012, 144406, 162632, 199084, 203116, 212077, 248642, 280024, 288812, 345593, 398168, 406232, 424154, 497284, 577624, 691186, 846107, 848308, 994568, 1227451, 1382372, 1443359, 1692214, 1696616, 2093887, 2454902, 2764744, 2886718, 3384428, 3605309, 4187774, 4909804, 5126413, 5773436, 6768856, 7210618, 8375548, 9819608, 10252826, 11546872, 14421236, 16751096, 20505652, 24537103, 28842472, 35596079, 41011304, 49074206, 71192158, 87149021, 98148412, 142384316, 148665977, 174298042, 196296824, 284768632, 297331954, 348596084, 594663908, 697192168, 1189327816, 2527321609, 5054643218, 10109286436, 20218572872]

約数ペア:

[(1, 20218572872), (2, 10109286436), (4, 5054643218), (8, 2527321609), (17, 1189327816), (29, 697192168), (34, 594663908), (58, 348596084), (68, 297331954), (71, 284768632), (103, 196296824), (116, 174298042), (136, 148665977), (142, 142384316), (206, 98148412), (232, 87149021), (284, 71192158), (412, 49074206), (493, 41011304), (568, 35596079), (701, 28842472), (824, 24537103), (986, 20505652), (1207, 16751096), (1402, 14421236), (1751, 11546872), (1972, 10252826), (2059, 9819608), (2414, 8375548), (2804, 7210618), (2987, 6768856), (3502, 5773436), (3944, 5126413), (4118, 4909804), (4828, 4187774), (5608, 3605309), (5974, 3384428), (7004, 2886718), (7313, 2764744), (8236, 2454902), (9656, 2093887), (11917, 1696616), (11948, 1692214), (14008, 1443359), (14626, 1382372), (16472, 1227451), (20329, 994568), (23834, 848308), (23896, 846107), (29252, 691186), (35003, 577624), (40658, 497284), (47668, 424154), (49771, 406232), (50779, 398168), (58504, 345593), (70006, 288812), (72203, 280024), (81316, 248642), (95336, 212077), (99542, 203116), (101558, 199084), (124321, 162632), (140012, 144406)]