81328460

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{7687}}^1$

素因数の和:7742

約数の個数: 36

約数和(自身を含む): 178561488

約数和(自身を除く): 97233028

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 529, 1058, 2116, 2645, 5290, 7687, 10580, 15374, 30748, 38435, 76870, 153740, 176801, 353602, 707204, 884005, 1768010, 3536020, 4066423, 8132846, 16265692, 20332115, 40664230, 81328460]

約数ペア:

[(1, 81328460), (2, 40664230), (4, 20332115), (5, 16265692), (10, 8132846), (20, 4066423), (23, 3536020), (46, 1768010), (92, 884005), (115, 707204), (230, 353602), (460, 176801), (529, 153740), (1058, 76870), (2116, 38435), (2645, 30748), (5290, 15374), (7687, 10580)]