81139738

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:450

約数の個数: 32

約数和(自身を含む): 130410000

約数和(自身を除く): 49270262

約数列:

[1, 2, 29, 41, 58, 82, 149, 229, 298, 458, 1189, 2378, 4321, 6109, 6641, 8642, 9389, 12218, 13282, 18778, 34121, 68242, 177161, 272281, 354322, 544562, 989509, 1398961, 1979018, 2797922, 40569869, 81139738]

約数ペア:

[(1, 81139738), (2, 40569869), (29, 2797922), (41, 1979018), (58, 1398961), (82, 989509), (149, 544562), (229, 354322), (298, 272281), (458, 177161), (1189, 68242), (2378, 34121), (4321, 18778), (6109, 13282), (6641, 12218), (8642, 9389)]