19409220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11981}}^1$

素因数の和:12002

約数の個数: 60

約数和(自身を含む): 60892524

約数和(自身を除く): 41483304

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 11981, 23962, 35943, 47924, 59905, 71886, 107829, 119810, 143772, 179715, 215658, 239620, 323487, 359430, 431316, 539145, 646974, 718860, 970461, 1078290, 1293948, 1617435, 1940922, 2156580, 3234870, 3881844, 4852305, 6469740, 9704610, 19409220]

約数ペア:

[(1, 19409220), (2, 9704610), (3, 6469740), (4, 4852305), (5, 3881844), (6, 3234870), (9, 2156580), (10, 1940922), (12, 1617435), (15, 1293948), (18, 1078290), (20, 970461), (27, 718860), (30, 646974), (36, 539145), (45, 431316), (54, 359430), (60, 323487), (81, 239620), (90, 215658), (108, 179715), (135, 143772), (162, 119810), (180, 107829), (270, 71886), (324, 59905), (405, 47924), (540, 35943), (810, 23962), (1620, 11981)]