28289235

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{607}}^1$

素因数の和:867

約数の個数: 32

約数和(自身を含む): 49029120

約数和(自身を除く): 20739885

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 239, 607, 717, 1195, 1821, 3035, 3107, 3585, 7891, 9105, 9321, 15535, 23673, 39455, 46605, 118365, 145073, 435219, 725365, 1885949, 2176095, 5657847, 9429745, 28289235]

約数ペア:

[(1, 28289235), (3, 9429745), (5, 5657847), (13, 2176095), (15, 1885949), (39, 725365), (65, 435219), (195, 145073), (239, 118365), (607, 46605), (717, 39455), (1195, 23673), (1821, 15535), (3035, 9321), (3107, 9105), (3585, 7891)]