215523505

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1\times {\mathrm{3821}}^1$

素因数の和:4244

約数の個数: 16

約数和(自身を含む): 268304400

約数和(自身を除く): 52780895

約数列:

[1, 5, 29, 145, 389, 1945, 3821, 11281, 19105, 56405, 110809, 554045, 1486369, 7431845, 43104701, 215523505]

約数ペア:

[(1, 215523505), (5, 43104701), (29, 7431845), (145, 1486369), (389, 554045), (1945, 110809), (3821, 56405), (11281, 19105)]