81437000

素因数分解:

$2^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 128

約数和(自身を含む): 204871680

約数和(自身を除く): 123434680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 37, 40, 50, 62, 71, 74, 100, 124, 125, 142, 148, 155, 185, 200, 248, 250, 284, 296, 310, 355, 370, 500, 568, 620, 710, 740, 775, 925, 1000, 1147, 1240, 1420, 1480, 1550, 1775, 1850, 2201, 2294, 2627, 2840, 3100, 3550, 3700, 3875, 4402, 4588, 4625, 5254, 5735, 6200, 7100, 7400, 7750, 8804, 8875, 9176, 9250, 10508, 11005, 11470, 13135, 14200, 15500, 17608, 17750, 18500, 21016, 22010, 22940, 26270, 28675, 31000, 35500, 37000, 44020, 45880, 52540, 55025, 57350, 65675, 71000, 81437, 88040, 105080, 110050, 114700, 131350, 143375, 162874, 220100, 229400, 262700, 275125, 286750, 325748, 328375, 407185, 440200, 525400, 550250, 573500, 651496, 656750, 814370, 1100500, 1147000, 1313500, 1628740, 2035925, 2201000, 2627000, 3257480, 4071850, 8143700, 10179625, 16287400, 20359250, 40718500, 81437000]

約数ペア:

[(1, 81437000), (2, 40718500), (4, 20359250), (5, 16287400), (8, 10179625), (10, 8143700), (20, 4071850), (25, 3257480), (31, 2627000), (37, 2201000), (40, 2035925), (50, 1628740), (62, 1313500), (71, 1147000), (74, 1100500), (100, 814370), (124, 656750), (125, 651496), (142, 573500), (148, 550250), (155, 525400), (185, 440200), (200, 407185), (248, 328375), (250, 325748), (284, 286750), (296, 275125), (310, 262700), (355, 229400), (370, 220100), (500, 162874), (568, 143375), (620, 131350), (710, 114700), (740, 110050), (775, 105080), (925, 88040), (1000, 81437), (1147, 71000), (1240, 65675), (1420, 57350), (1480, 55025), (1550, 52540), (1775, 45880), (1850, 44020), (2201, 37000), (2294, 35500), (2627, 31000), (2840, 28675), (3100, 26270), (3550, 22940), (3700, 22010), (3875, 21016), (4402, 18500), (4588, 17750), (4625, 17608), (5254, 15500), (5735, 14200), (6200, 13135), (7100, 11470), (7400, 11005), (7750, 10508), (8804, 9250), (8875, 9176)]