20004886720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{23689}}^1$

素因数の和:23755

約数の個数: 224

約数和(自身を含む): 60653980800

約数和(自身を除く): 40649094080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 29, 32, 35, 40, 52, 56, 58, 64, 65, 70, 80, 91, 104, 112, 116, 130, 140, 145, 160, 182, 203, 208, 224, 232, 260, 280, 290, 320, 364, 377, 406, 416, 448, 455, 464, 520, 560, 580, 728, 754, 812, 832, 910, 928, 1015, 1040, 1120, 1160, 1456, 1508, 1624, 1820, 1856, 1885, 2030, 2080, 2240, 2320, 2639, 2912, 3016, 3248, 3640, 3770, 4060, 4160, 4640, 5278, 5824, 6032, 6496, 7280, 7540, 8120, 9280, 10556, 12064, 12992, 13195, 14560, 15080, 16240, 21112, 23689, 24128, 26390, 29120, 30160, 32480, 42224, 47378, 52780, 60320, 64960, 84448, 94756, 105560, 118445, 120640, 165823, 168896, 189512, 211120, 236890, 307957, 331646, 379024, 422240, 473780, 615914, 663292, 686981, 758048, 829115, 844480, 947560, 1231828, 1326584, 1373962, 1516096, 1539785, 1658230, 1895120, 2155699, 2463656, 2653168, 2747924, 3079570, 3316460, 3434905, 3790240, 4311398, 4808867, 4927312, 5306336, 5495848, 6159140, 6632920, 6869810, 7580480, 8622796, 8930753, 9617734, 9854624, 10612672, 10778495, 10991696, 12318280, 13265840, 13739620, 17245592, 17861506, 19235468, 19709248, 21556990, 21983392, 24044335, 24636560, 26531680, 27479240, 34491184, 35723012, 38470936, 43113980, 43966784, 44653765, 48088670, 49273120, 53063360, 54958480, 62515271, 68982368, 71446024, 76941872, 86227960, 89307530, 96177340, 98546240, 109916960, 125030542, 137964736, 142892048, 153883744, 172455920, 178615060, 192354680, 219833920, 250061084, 285784096, 307767488, 312576355, 344911840, 357230120, 384709360, 500122168, 571568192, 625152710, 689823680, 714460240, 769418720, 1000244336, 1250305420, 1428920480, 1538837440, 2000488672, 2500610840, 2857840960, 4000977344, 5001221680, 10002443360, 20004886720]

約数ペア:

[(1, 20004886720), (2, 10002443360), (4, 5001221680), (5, 4000977344), (7, 2857840960), (8, 2500610840), (10, 2000488672), (13, 1538837440), (14, 1428920480), (16, 1250305420), (20, 1000244336), (26, 769418720), (28, 714460240), (29, 689823680), (32, 625152710), (35, 571568192), (40, 500122168), (52, 384709360), (56, 357230120), (58, 344911840), (64, 312576355), (65, 307767488), (70, 285784096), (80, 250061084), (91, 219833920), (104, 192354680), (112, 178615060), (116, 172455920), (130, 153883744), (140, 142892048), (145, 137964736), (160, 125030542), (182, 109916960), (203, 98546240), (208, 96177340), (224, 89307530), (232, 86227960), (260, 76941872), (280, 71446024), (290, 68982368), (320, 62515271), (364, 54958480), (377, 53063360), (406, 49273120), (416, 48088670), (448, 44653765), (455, 43966784), (464, 43113980), (520, 38470936), (560, 35723012), (580, 34491184), (728, 27479240), (754, 26531680), (812, 24636560), (832, 24044335), (910, 21983392), (928, 21556990), (1015, 19709248), (1040, 19235468), (1120, 17861506), (1160, 17245592), (1456, 13739620), (1508, 13265840), (1624, 12318280), (1820, 10991696), (1856, 10778495), (1885, 10612672), (2030, 9854624), (2080, 9617734), (2240, 8930753), (2320, 8622796), (2639, 7580480), (2912, 6869810), (3016, 6632920), (3248, 6159140), (3640, 5495848), (3770, 5306336), (4060, 4927312), (4160, 4808867), (4640, 4311398), (5278, 3790240), (5824, 3434905), (6032, 3316460), (6496, 3079570), (7280, 2747924), (7540, 2653168), (8120, 2463656), (9280, 2155699), (10556, 1895120), (12064, 1658230), (12992, 1539785), (13195, 1516096), (14560, 1373962), (15080, 1326584), (16240, 1231828), (21112, 947560), (23689, 844480), (24128, 829115), (26390, 758048), (29120, 686981), (30160, 663292), (32480, 615914), (42224, 473780), (47378, 422240), (52780, 379024), (60320, 331646), (64960, 307957), (84448, 236890), (94756, 211120), (105560, 189512), (118445, 168896), (120640, 165823)]