21490357360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{937}}^1$

素因数の和:1239

約数の個数: 160

約数和(自身を含む): 53596569600

約数和(自身を除く): 32106212240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 79, 80, 95, 152, 158, 190, 191, 304, 316, 380, 382, 395, 632, 760, 764, 790, 937, 955, 1264, 1501, 1520, 1528, 1580, 1874, 1910, 3002, 3056, 3160, 3629, 3748, 3820, 4685, 6004, 6320, 7258, 7496, 7505, 7640, 9370, 12008, 14516, 14992, 15010, 15089, 15280, 17803, 18145, 18740, 24016, 29032, 30020, 30178, 35606, 36290, 37480, 58064, 60040, 60356, 71212, 72580, 74023, 74960, 75445, 89015, 120080, 120712, 142424, 145160, 148046, 150890, 178030, 178967, 241424, 284848, 286691, 290320, 296092, 301780, 356060, 357934, 370115, 573382, 592184, 603560, 712120, 715868, 740230, 894835, 1146764, 1184368, 1207120, 1406437, 1424240, 1431736, 1433455, 1480460, 1789670, 2293528, 2812874, 2863472, 2866910, 2960920, 3400373, 3579340, 4587056, 5625748, 5733820, 5921840, 6800746, 7032185, 7158680, 11251496, 11467640, 13601492, 14064370, 14138393, 14317360, 17001865, 22502992, 22935280, 27202984, 28128740, 28276786, 34003730, 54405968, 56257480, 56553572, 68007460, 70691965, 112514960, 113107144, 136014920, 141383930, 226214288, 268629467, 272029840, 282767860, 537258934, 565535720, 1074517868, 1131071440, 1343147335, 2149035736, 2686294670, 4298071472, 5372589340, 10745178680, 21490357360]

約数ペア:

[(1, 21490357360), (2, 10745178680), (4, 5372589340), (5, 4298071472), (8, 2686294670), (10, 2149035736), (16, 1343147335), (19, 1131071440), (20, 1074517868), (38, 565535720), (40, 537258934), (76, 282767860), (79, 272029840), (80, 268629467), (95, 226214288), (152, 141383930), (158, 136014920), (190, 113107144), (191, 112514960), (304, 70691965), (316, 68007460), (380, 56553572), (382, 56257480), (395, 54405968), (632, 34003730), (760, 28276786), (764, 28128740), (790, 27202984), (937, 22935280), (955, 22502992), (1264, 17001865), (1501, 14317360), (1520, 14138393), (1528, 14064370), (1580, 13601492), (1874, 11467640), (1910, 11251496), (3002, 7158680), (3056, 7032185), (3160, 6800746), (3629, 5921840), (3748, 5733820), (3820, 5625748), (4685, 4587056), (6004, 3579340), (6320, 3400373), (7258, 2960920), (7496, 2866910), (7505, 2863472), (7640, 2812874), (9370, 2293528), (12008, 1789670), (14516, 1480460), (14992, 1433455), (15010, 1431736), (15089, 1424240), (15280, 1406437), (17803, 1207120), (18145, 1184368), (18740, 1146764), (24016, 894835), (29032, 740230), (30020, 715868), (30178, 712120), (35606, 603560), (36290, 592184), (37480, 573382), (58064, 370115), (60040, 357934), (60356, 356060), (71212, 301780), (72580, 296092), (74023, 290320), (74960, 286691), (75445, 284848), (89015, 241424), (120080, 178967), (120712, 178030), (142424, 150890), (145160, 148046)]