280064385

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{22307}}^1$

素因数の和:22355

約数の個数: 40

約数和(自身を含む): 518259456

約数和(自身を除く): 238195071

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 279, 405, 465, 837, 1395, 2511, 4185, 12555, 22307, 66921, 111535, 200763, 334605, 602289, 691517, 1003815, 1806867, 2074551, 3011445, 3457585, 6223653, 9034335, 10372755, 18670959, 31118265, 56012877, 93354795, 280064385]

約数ペア:

[(1, 280064385), (3, 93354795), (5, 56012877), (9, 31118265), (15, 18670959), (27, 10372755), (31, 9034335), (45, 6223653), (81, 3457585), (93, 3011445), (135, 2074551), (155, 1806867), (279, 1003815), (405, 691517), (465, 602289), (837, 334605), (1395, 200763), (2511, 111535), (4185, 66921), (12555, 22307)]