20077995

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{463}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 38085120

約数和(自身を除く): 18007125

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 59, 105, 147, 177, 245, 295, 413, 463, 735, 885, 1239, 1389, 2065, 2315, 2891, 3241, 6195, 6945, 8673, 9723, 14455, 16205, 22687, 27317, 43365, 48615, 68061, 81951, 113435, 136585, 191219, 340305, 409755, 573657, 956095, 1338533, 2868285, 4015599, 6692665, 20077995]

約数ペア:

[(1, 20077995), (3, 6692665), (5, 4015599), (7, 2868285), (15, 1338533), (21, 956095), (35, 573657), (49, 409755), (59, 340305), (105, 191219), (147, 136585), (177, 113435), (245, 81951), (295, 68061), (413, 48615), (463, 43365), (735, 27317), (885, 22687), (1239, 16205), (1389, 14455), (2065, 9723), (2315, 8673), (2891, 6945), (3241, 6195)]