20021565480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1\times {\mathrm{863}}^1$

素因数の和:1344

約数の個数: 256

約数和(自身を含む): 69872025600

約数和(自身を除く): 49850460120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 389, 420, 426, 497, 568, 710, 778, 840, 852, 863, 994, 1065, 1167, 1420, 1491, 1556, 1704, 1726, 1945, 1988, 2130, 2334, 2485, 2589, 2723, 2840, 2982, 3112, 3452, 3890, 3976, 4260, 4315, 4668, 4970, 5178, 5446, 5835, 5964, 6041, 6904, 7455, 7780, 8169, 8520, 8630, 9336, 9940, 10356, 10892, 11670, 11928, 12082, 12945, 13615, 14910, 15560, 16338, 17260, 18123, 19880, 20712, 21784, 23340, 24164, 25890, 27230, 27619, 29820, 30205, 32676, 34520, 36246, 40845, 46680, 48328, 51780, 54460, 55238, 59640, 60410, 61273, 65352, 72492, 81690, 82857, 90615, 103560, 108920, 110476, 120820, 122546, 138095, 144984, 163380, 165714, 181230, 183819, 193333, 220952, 241640, 245092, 276190, 306365, 326760, 331428, 335707, 362460, 367638, 386666, 414285, 428911, 490184, 552380, 579999, 612730, 662856, 671414, 724920, 735276, 773332, 828570, 857822, 919095, 966665, 1007121, 1104760, 1159998, 1225460, 1286733, 1342828, 1470552, 1546664, 1657140, 1678535, 1715644, 1838190, 1933330, 2014242, 2144555, 2319996, 2349949, 2450920, 2573466, 2685656, 2899995, 3314280, 3357070, 3431288, 3676380, 3866660, 4028484, 4289110, 4639992, 4699898, 5035605, 5146932, 5799990, 6433665, 6714140, 7049847, 7352760, 7733320, 8056968, 8578220, 9399796, 10071210, 10293864, 11599980, 11749745, 12867330, 13428280, 14099694, 17156440, 18799592, 20142420, 23199960, 23499490, 23835197, 25734660, 28199388, 35249235, 40284840, 46998980, 47670394, 51469320, 56398776, 70498470, 71505591, 93997960, 95340788, 119175985, 140996940, 143011182, 166846379, 190681576, 238351970, 281993880, 286022364, 333692758, 357527955, 476703940, 500539137, 572044728, 667385516, 715055910, 834231895, 953407880, 1001078274, 1334771032, 1430111820, 1668463790, 2002156548, 2502695685, 2860223640, 3336927580, 4004313096, 5005391370, 6673855160, 10010782740, 20021565480]

約数ペア:

[(1, 20021565480), (2, 10010782740), (3, 6673855160), (4, 5005391370), (5, 4004313096), (6, 3336927580), (7, 2860223640), (8, 2502695685), (10, 2002156548), (12, 1668463790), (14, 1430111820), (15, 1334771032), (20, 1001078274), (21, 953407880), (24, 834231895), (28, 715055910), (30, 667385516), (35, 572044728), (40, 500539137), (42, 476703940), (56, 357527955), (60, 333692758), (70, 286022364), (71, 281993880), (84, 238351970), (105, 190681576), (120, 166846379), (140, 143011182), (142, 140996940), (168, 119175985), (210, 95340788), (213, 93997960), (280, 71505591), (284, 70498470), (355, 56398776), (389, 51469320), (420, 47670394), (426, 46998980), (497, 40284840), (568, 35249235), (710, 28199388), (778, 25734660), (840, 23835197), (852, 23499490), (863, 23199960), (994, 20142420), (1065, 18799592), (1167, 17156440), (1420, 14099694), (1491, 13428280), (1556, 12867330), (1704, 11749745), (1726, 11599980), (1945, 10293864), (1988, 10071210), (2130, 9399796), (2334, 8578220), (2485, 8056968), (2589, 7733320), (2723, 7352760), (2840, 7049847), (2982, 6714140), (3112, 6433665), (3452, 5799990), (3890, 5146932), (3976, 5035605), (4260, 4699898), (4315, 4639992), (4668, 4289110), (4970, 4028484), (5178, 3866660), (5446, 3676380), (5835, 3431288), (5964, 3357070), (6041, 3314280), (6904, 2899995), (7455, 2685656), (7780, 2573466), (8169, 2450920), (8520, 2349949), (8630, 2319996), (9336, 2144555), (9940, 2014242), (10356, 1933330), (10892, 1838190), (11670, 1715644), (11928, 1678535), (12082, 1657140), (12945, 1546664), (13615, 1470552), (14910, 1342828), (15560, 1286733), (16338, 1225460), (17260, 1159998), (18123, 1104760), (19880, 1007121), (20712, 966665), (21784, 919095), (23340, 857822), (24164, 828570), (25890, 773332), (27230, 735276), (27619, 724920), (29820, 671414), (30205, 662856), (32676, 612730), (34520, 579999), (36246, 552380), (40845, 490184), (46680, 428911), (48328, 414285), (51780, 386666), (54460, 367638), (55238, 362460), (59640, 335707), (60410, 331428), (61273, 326760), (65352, 306365), (72492, 276190), (81690, 245092), (82857, 241640), (90615, 220952), (103560, 193333), (108920, 183819), (110476, 181230), (120820, 165714), (122546, 163380), (138095, 144984)]