187979868

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:667

約数の個数: 72

約数和(自身を含む): 485401280

約数和(自身を除く): 297421412

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 157, 158, 237, 314, 316, 421, 471, 474, 628, 711, 842, 942, 948, 1263, 1413, 1422, 1684, 1884, 2526, 2826, 2844, 3789, 5052, 5652, 7578, 12403, 15156, 24806, 33259, 37209, 49612, 66097, 66518, 74418, 99777, 111627, 132194, 133036, 148836, 198291, 199554, 223254, 264388, 299331, 396582, 399108, 446508, 594873, 598662, 793164, 1189746, 1197324, 2379492, 5221663, 10443326, 15664989, 20886652, 31329978, 46994967, 62659956, 93989934, 187979868]

約数ペア:

[(1, 187979868), (2, 93989934), (3, 62659956), (4, 46994967), (6, 31329978), (9, 20886652), (12, 15664989), (18, 10443326), (36, 5221663), (79, 2379492), (157, 1197324), (158, 1189746), (237, 793164), (314, 598662), (316, 594873), (421, 446508), (471, 399108), (474, 396582), (628, 299331), (711, 264388), (842, 223254), (942, 199554), (948, 198291), (1263, 148836), (1413, 133036), (1422, 132194), (1684, 111627), (1884, 99777), (2526, 74418), (2826, 66518), (2844, 66097), (3789, 49612), (5052, 37209), (5652, 33259), (7578, 24806), (12403, 15156)]