20005765

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 27659520

約数和(自身を除く): 7653755

約数列:

[1, 5, 13, 19, 65, 95, 97, 167, 247, 485, 835, 1235, 1261, 1843, 2171, 3173, 6305, 9215, 10855, 15865, 16199, 23959, 41249, 80995, 119795, 206245, 210587, 307781, 1052935, 1538905, 4001153, 20005765]

約数ペア:

[(1, 20005765), (5, 4001153), (13, 1538905), (19, 1052935), (65, 307781), (95, 210587), (97, 206245), (167, 119795), (247, 80995), (485, 41249), (835, 23959), (1235, 16199), (1261, 15865), (1843, 10855), (2171, 9215), (3173, 6305)]