163989765

素因数分解:

$3^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1901}}^1$

素因数の和:1992

約数の個数: 48

約数和(自身を含む): 299085696

約数和(自身を除く): 135095931

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 81, 135, 213, 243, 355, 405, 639, 1065, 1215, 1901, 1917, 3195, 5703, 5751, 9505, 9585, 17109, 17253, 28515, 28755, 51327, 85545, 86265, 134971, 153981, 256635, 404913, 461943, 674855, 769905, 1214739, 2024565, 2309715, 3644217, 6073695, 10932651, 18221085, 32797953, 54663255, 163989765]

約数ペア:

[(1, 163989765), (3, 54663255), (5, 32797953), (9, 18221085), (15, 10932651), (27, 6073695), (45, 3644217), (71, 2309715), (81, 2024565), (135, 1214739), (213, 769905), (243, 674855), (355, 461943), (405, 404913), (639, 256635), (1065, 153981), (1215, 134971), (1901, 86265), (1917, 85545), (3195, 51327), (5703, 28755), (5751, 28515), (9505, 17253), (9585, 17109)]