12780045

素因数分解:

$3^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{691}}^1$

素因数の和:842

約数の個数: 32

約数和(自身を含む): 22919040

約数和(自身を除く): 10138995

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 137, 411, 685, 691, 1233, 2055, 2073, 3455, 3699, 6165, 6219, 10365, 18495, 18657, 31095, 93285, 94667, 284001, 473335, 852003, 1420005, 2556009, 4260015, 12780045]

約数ペア:

[(1, 12780045), (3, 4260015), (5, 2556009), (9, 1420005), (15, 852003), (27, 473335), (45, 284001), (135, 94667), (137, 93285), (411, 31095), (685, 18657), (691, 18495), (1233, 10365), (2055, 6219), (2073, 6165), (3455, 3699)]