81609256

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{3919}}^1$

素因数の和:4081

約数の個数: 32

約数和(自身を含む): 162288000

約数和(自身を除く): 80678744

約数列:

[1, 2, 4, 8, 19, 38, 76, 137, 152, 274, 548, 1096, 2603, 3919, 5206, 7838, 10412, 15676, 20824, 31352, 74461, 148922, 297844, 536903, 595688, 1073806, 2147612, 4295224, 10201157, 20402314, 40804628, 81609256]

約数ペア:

[(1, 81609256), (2, 40804628), (4, 20402314), (8, 10201157), (19, 4295224), (38, 2147612), (76, 1073806), (137, 595688), (152, 536903), (274, 297844), (548, 148922), (1096, 74461), (2603, 31352), (3919, 20824), (5206, 15676), (7838, 10412)]