20500290

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25309}}^1$

素因数の和:25328

約数の個数: 40

約数和(自身を含む): 55125180

約数和(自身を除く): 34624890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25309, 50618, 75927, 126545, 151854, 227781, 253090, 379635, 455562, 683343, 759270, 1138905, 1366686, 2050029, 2277810, 3416715, 4100058, 6833430, 10250145, 20500290]

約数ペア:

[(1, 20500290), (2, 10250145), (3, 6833430), (5, 4100058), (6, 3416715), (9, 2277810), (10, 2050029), (15, 1366686), (18, 1138905), (27, 759270), (30, 683343), (45, 455562), (54, 379635), (81, 253090), (90, 227781), (135, 151854), (162, 126545), (270, 75927), (405, 50618), (810, 25309)]