15804980520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{990287}}^1$

素因数の和:990327

約数の個数: 128

約数和(自身を含む): 57040588800

約数和(自身を除く): 41235608280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1995, 2280, 2660, 3192, 3990, 5320, 7980, 15960, 990287, 1980574, 2970861, 3961148, 4951435, 5941722, 6932009, 7922296, 9902870, 11883444, 13864018, 14854305, 18815453, 19805740, 20796027, 23766888, 27728036, 29708610, 34660045, 37630906, 39611480, 41592054, 55456072, 56446359, 59417220, 69320090, 75261812, 83184108, 94077265, 103980135, 112892718, 118834440, 131708171, 138640180, 150523624, 166368216, 188154530, 207960270, 225785436, 263416342, 277280360, 282231795, 376309060, 395124513, 415920540, 451570872, 526832684, 564463590, 658540855, 752618120, 790249026, 831841080, 1053665368, 1128927180, 1317081710, 1580498052, 1975622565, 2257854360, 2634163420, 3160996104, 3951245130, 5268326840, 7902490260, 15804980520]

約数ペア:

[(1, 15804980520), (2, 7902490260), (3, 5268326840), (4, 3951245130), (5, 3160996104), (6, 2634163420), (7, 2257854360), (8, 1975622565), (10, 1580498052), (12, 1317081710), (14, 1128927180), (15, 1053665368), (19, 831841080), (20, 790249026), (21, 752618120), (24, 658540855), (28, 564463590), (30, 526832684), (35, 451570872), (38, 415920540), (40, 395124513), (42, 376309060), (56, 282231795), (57, 277280360), (60, 263416342), (70, 225785436), (76, 207960270), (84, 188154530), (95, 166368216), (105, 150523624), (114, 138640180), (120, 131708171), (133, 118834440), (140, 112892718), (152, 103980135), (168, 94077265), (190, 83184108), (210, 75261812), (228, 69320090), (266, 59417220), (280, 56446359), (285, 55456072), (380, 41592054), (399, 39611480), (420, 37630906), (456, 34660045), (532, 29708610), (570, 27728036), (665, 23766888), (760, 20796027), (798, 19805740), (840, 18815453), (1064, 14854305), (1140, 13864018), (1330, 11883444), (1596, 9902870), (1995, 7922296), (2280, 6932009), (2660, 5941722), (3192, 4951435), (3990, 3961148), (5320, 2970861), (7980, 1980574), (15960, 990287)]