27540280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11287}}^1$

素因数の和:11359

約数の個数: 32

約数和(自身を含む): 62987040

約数和(自身を除く): 35446760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 11287, 22574, 45148, 56435, 90296, 112870, 225740, 451480, 688507, 1377014, 2754028, 3442535, 5508056, 6885070, 13770140, 27540280]

約数ペア:

[(1, 27540280), (2, 13770140), (4, 6885070), (5, 5508056), (8, 3442535), (10, 2754028), (20, 1377014), (40, 688507), (61, 451480), (122, 225740), (244, 112870), (305, 90296), (488, 56435), (610, 45148), (1220, 22574), (2440, 11287)]