20800515

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19531}}^1$

素因数の和:19610

約数の個数: 16

約数和(自身を含む): 33751296

約数和(自身を除く): 12950781

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 19531, 58593, 97655, 292965, 1386701, 4160103, 6933505, 20800515]

約数ペア:

[(1, 20800515), (3, 6933505), (5, 4160103), (15, 1386701), (71, 292965), (213, 97655), (355, 58593), (1065, 19531)]