205717270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{21013}}^1$

素因数の和:21120

約数の個数: 32

約数和(自身を含む): 408512160

約数和(自身を除く): 202794890

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 4895, 9790, 21013, 42026, 105065, 210130, 231143, 462286, 1155715, 1870157, 2311430, 3740314, 9350785, 18701570, 20571727, 41143454, 102858635, 205717270]

約数ペア:

[(1, 205717270), (2, 102858635), (5, 41143454), (10, 20571727), (11, 18701570), (22, 9350785), (55, 3740314), (89, 2311430), (110, 1870157), (178, 1155715), (445, 462286), (890, 231143), (979, 210130), (1958, 105065), (4895, 42026), (9790, 21013)]