20809914825

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{389}}^1$

素因数の和:632

約数の個数: 192

約数和(自身を含む): 43082956800

約数和(自身を除く): 22273041975

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 31, 35, 57, 75, 93, 95, 105, 133, 155, 173, 175, 217, 285, 389, 399, 465, 475, 519, 525, 589, 651, 665, 775, 865, 1085, 1167, 1211, 1425, 1767, 1945, 1995, 2325, 2595, 2723, 2945, 3255, 3287, 3325, 3633, 4123, 4325, 5363, 5425, 5835, 6055, 7391, 8169, 8835, 9725, 9861, 9975, 12059, 12369, 12975, 13615, 14725, 16089, 16275, 16435, 18165, 20615, 22173, 23009, 26815, 29175, 30275, 36177, 36955, 37541, 40845, 44175, 49305, 51737, 60295, 61845, 67297, 68075, 69027, 80445, 82175, 84413, 90825, 101897, 103075, 110865, 112623, 115045, 134075, 155211, 180885, 184775, 187705, 201891, 204225, 229121, 246525, 253239, 258685, 301475, 305691, 309225, 336485, 345135, 402225, 422065, 471079, 509485, 554325, 563115, 575225, 687363, 713279, 776055, 904425, 938525, 1009455, 1145605, 1266195, 1278643, 1293425, 1413237, 1528455, 1603847, 1682425, 1725675, 2086207, 2110325, 2139837, 2355395, 2547425, 2815575, 3436815, 3566395, 3835929, 3880275, 4811541, 5047275, 5728025, 6258621, 6330975, 6393215, 7066185, 7642275, 8019235, 8950501, 10431035, 10699185, 11776975, 14603449, 17184075, 17831975, 19179645, 24057705, 26851503, 31293105, 31966075, 35330925, 39637933, 40096175, 43810347, 44752505, 52155175, 53495925, 73017245, 95898225, 118913799, 120288525, 134257515, 156465525, 198189665, 219051735, 223762525, 277465531, 365086225, 594568995, 671287575, 832396593, 990948325, 1095258675, 1387327655, 2972844975, 4161982965, 6936638275, 20809914825]

約数ペア:

[(1, 20809914825), (3, 6936638275), (5, 4161982965), (7, 2972844975), (15, 1387327655), (19, 1095258675), (21, 990948325), (25, 832396593), (31, 671287575), (35, 594568995), (57, 365086225), (75, 277465531), (93, 223762525), (95, 219051735), (105, 198189665), (133, 156465525), (155, 134257515), (173, 120288525), (175, 118913799), (217, 95898225), (285, 73017245), (389, 53495925), (399, 52155175), (465, 44752505), (475, 43810347), (519, 40096175), (525, 39637933), (589, 35330925), (651, 31966075), (665, 31293105), (775, 26851503), (865, 24057705), (1085, 19179645), (1167, 17831975), (1211, 17184075), (1425, 14603449), (1767, 11776975), (1945, 10699185), (1995, 10431035), (2325, 8950501), (2595, 8019235), (2723, 7642275), (2945, 7066185), (3255, 6393215), (3287, 6330975), (3325, 6258621), (3633, 5728025), (4123, 5047275), (4325, 4811541), (5363, 3880275), (5425, 3835929), (5835, 3566395), (6055, 3436815), (7391, 2815575), (8169, 2547425), (8835, 2355395), (9725, 2139837), (9861, 2110325), (9975, 2086207), (12059, 1725675), (12369, 1682425), (12975, 1603847), (13615, 1528455), (14725, 1413237), (16089, 1293425), (16275, 1278643), (16435, 1266195), (18165, 1145605), (20615, 1009455), (22173, 938525), (23009, 904425), (26815, 776055), (29175, 713279), (30275, 687363), (36177, 575225), (36955, 563115), (37541, 554325), (40845, 509485), (44175, 471079), (49305, 422065), (51737, 402225), (60295, 345135), (61845, 336485), (67297, 309225), (68075, 305691), (69027, 301475), (80445, 258685), (82175, 253239), (84413, 246525), (90825, 229121), (101897, 204225), (103075, 201891), (110865, 187705), (112623, 184775), (115045, 180885), (134075, 155211)]