19928970

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2381}}^1$

素因数の和:2428

約数の個数: 64

約数和(自身を含む): 54881280

約数和(自身を除く): 34952310

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 90, 93, 135, 155, 186, 270, 279, 310, 465, 558, 837, 930, 1395, 1674, 2381, 2790, 4185, 4762, 7143, 8370, 11905, 14286, 21429, 23810, 35715, 42858, 64287, 71430, 73811, 107145, 128574, 147622, 214290, 221433, 321435, 369055, 442866, 642870, 664299, 738110, 1107165, 1328598, 1992897, 2214330, 3321495, 3985794, 6642990, 9964485, 19928970]

約数ペア:

[(1, 19928970), (2, 9964485), (3, 6642990), (5, 3985794), (6, 3321495), (9, 2214330), (10, 1992897), (15, 1328598), (18, 1107165), (27, 738110), (30, 664299), (31, 642870), (45, 442866), (54, 369055), (62, 321435), (90, 221433), (93, 214290), (135, 147622), (155, 128574), (186, 107145), (270, 73811), (279, 71430), (310, 64287), (465, 42858), (558, 35715), (837, 23810), (930, 21429), (1395, 14286), (1674, 11905), (2381, 8370), (2790, 7143), (4185, 4762)]