12720075

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{5471}}^1$

素因数の和:5515

約数の個数: 24

約数和(自身を含む): 21712896

約数和(自身を除く): 8992821

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 465, 775, 2325, 5471, 16413, 27355, 82065, 136775, 169601, 410325, 508803, 848005, 2544015, 4240025, 12720075]

約数ペア:

[(1, 12720075), (3, 4240025), (5, 2544015), (15, 848005), (25, 508803), (31, 410325), (75, 169601), (93, 136775), (155, 82065), (465, 27355), (775, 16413), (2325, 5471)]