27878990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2579}}^1$

素因数の和:2656

約数の個数: 32

約数和(自身を含む): 53498880

約数和(自身を除く): 25619890

約数列:

[1, 2, 5, 10, 23, 46, 47, 94, 115, 230, 235, 470, 1081, 2162, 2579, 5158, 5405, 10810, 12895, 25790, 59317, 118634, 121213, 242426, 296585, 593170, 606065, 1212130, 2787899, 5575798, 13939495, 27878990]

約数ペア:

[(1, 27878990), (2, 13939495), (5, 5575798), (10, 2787899), (23, 1212130), (46, 606065), (47, 593170), (94, 296585), (115, 242426), (230, 121213), (235, 118634), (470, 59317), (1081, 25790), (2162, 12895), (2579, 10810), (5158, 5405)]