256825080

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2557}}^1$

素因数の和:2611

約数の個数: 160

約数和(自身を含む): 891411840

約数和(自身を除く): 634586760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 81, 90, 93, 108, 120, 124, 135, 155, 162, 180, 186, 216, 248, 270, 279, 310, 324, 360, 372, 405, 465, 540, 558, 620, 648, 744, 810, 837, 930, 1080, 1116, 1240, 1395, 1620, 1674, 1860, 2232, 2511, 2557, 2790, 3240, 3348, 3720, 4185, 5022, 5114, 5580, 6696, 7671, 8370, 10044, 10228, 11160, 12555, 12785, 15342, 16740, 20088, 20456, 23013, 25110, 25570, 30684, 33480, 38355, 46026, 50220, 51140, 61368, 69039, 76710, 79267, 92052, 100440, 102280, 115065, 138078, 153420, 158534, 184104, 207117, 230130, 237801, 276156, 306840, 317068, 345195, 396335, 414234, 460260, 475602, 552312, 634136, 690390, 713403, 792670, 828468, 920520, 951204, 1035585, 1189005, 1380780, 1426806, 1585340, 1656936, 1902408, 2071170, 2140209, 2378010, 2761560, 2853612, 3170680, 3567015, 4142340, 4280418, 4756020, 5707224, 6420627, 7134030, 8284680, 8560836, 9512040, 10701045, 12841254, 14268060, 17121672, 21402090, 25682508, 28536120, 32103135, 42804180, 51365016, 64206270, 85608360, 128412540, 256825080]

約数ペア:

[(1, 256825080), (2, 128412540), (3, 85608360), (4, 64206270), (5, 51365016), (6, 42804180), (8, 32103135), (9, 28536120), (10, 25682508), (12, 21402090), (15, 17121672), (18, 14268060), (20, 12841254), (24, 10701045), (27, 9512040), (30, 8560836), (31, 8284680), (36, 7134030), (40, 6420627), (45, 5707224), (54, 4756020), (60, 4280418), (62, 4142340), (72, 3567015), (81, 3170680), (90, 2853612), (93, 2761560), (108, 2378010), (120, 2140209), (124, 2071170), (135, 1902408), (155, 1656936), (162, 1585340), (180, 1426806), (186, 1380780), (216, 1189005), (248, 1035585), (270, 951204), (279, 920520), (310, 828468), (324, 792670), (360, 713403), (372, 690390), (405, 634136), (465, 552312), (540, 475602), (558, 460260), (620, 414234), (648, 396335), (744, 345195), (810, 317068), (837, 306840), (930, 276156), (1080, 237801), (1116, 230130), (1240, 207117), (1395, 184104), (1620, 158534), (1674, 153420), (1860, 138078), (2232, 115065), (2511, 102280), (2557, 100440), (2790, 92052), (3240, 79267), (3348, 76710), (3720, 69039), (4185, 61368), (5022, 51140), (5114, 50220), (5580, 46026), (6696, 38355), (7671, 33480), (8370, 30684), (10044, 25570), (10228, 25110), (11160, 23013), (12555, 20456), (12785, 20088), (15342, 16740)]