1638831320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{308051}}^1$

素因数の和:308088

約数の個数: 64

約数和(自身を含む): 4435948800

約数和(自身を除く): 2797117480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 308051, 616102, 1232204, 1540255, 2156357, 2464408, 3080510, 4312714, 5852969, 6161020, 8625428, 10781785, 11705938, 12322040, 17250856, 21563570, 23411876, 29264845, 40970783, 43127140, 46823752, 58529690, 81941566, 86254280, 117059380, 163883132, 204853915, 234118760, 327766264, 409707830, 819415660, 1638831320]

約数ペア:

[(1, 1638831320), (2, 819415660), (4, 409707830), (5, 327766264), (7, 234118760), (8, 204853915), (10, 163883132), (14, 117059380), (19, 86254280), (20, 81941566), (28, 58529690), (35, 46823752), (38, 43127140), (40, 40970783), (56, 29264845), (70, 23411876), (76, 21563570), (95, 17250856), (133, 12322040), (140, 11705938), (152, 10781785), (190, 8625428), (266, 6161020), (280, 5852969), (380, 4312714), (532, 3080510), (665, 2464408), (760, 2156357), (1064, 1540255), (1330, 1232204), (2660, 616102), (5320, 308051)]