20487510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11981}}^1$

素因数の和:12013

約数の個数: 48

約数和(自身を含む): 56075760

約数和(自身を除く): 35588250

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 90, 95, 114, 171, 190, 285, 342, 570, 855, 1710, 11981, 23962, 35943, 59905, 71886, 107829, 119810, 179715, 215658, 227639, 359430, 455278, 539145, 682917, 1078290, 1138195, 1365834, 2048751, 2276390, 3414585, 4097502, 6829170, 10243755, 20487510]

約数ペア:

[(1, 20487510), (2, 10243755), (3, 6829170), (5, 4097502), (6, 3414585), (9, 2276390), (10, 2048751), (15, 1365834), (18, 1138195), (19, 1078290), (30, 682917), (38, 539145), (45, 455278), (57, 359430), (90, 227639), (95, 215658), (114, 179715), (171, 119810), (190, 107829), (285, 71886), (342, 59905), (570, 35943), (855, 23962), (1710, 11981)]