890685005

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{263}}^1\times {\mathrm{601}}^1$

素因数の和:906

約数の個数: 48

約数和(自身を含む): 1304481024

約数和(自身を除く): 413796019

約数列:

[1, 5, 7, 23, 35, 49, 115, 161, 245, 263, 601, 805, 1127, 1315, 1841, 3005, 4207, 5635, 6049, 9205, 12887, 13823, 21035, 29449, 30245, 42343, 64435, 69115, 96761, 147245, 158063, 211715, 296401, 483805, 677327, 790315, 1106441, 1482005, 3386635, 3635449, 5532205, 7745087, 18177245, 25448143, 38725435, 127240715, 178137001, 890685005]

約数ペア:

[(1, 890685005), (5, 178137001), (7, 127240715), (23, 38725435), (35, 25448143), (49, 18177245), (115, 7745087), (161, 5532205), (245, 3635449), (263, 3386635), (601, 1482005), (805, 1106441), (1127, 790315), (1315, 677327), (1841, 483805), (3005, 296401), (4207, 211715), (5635, 158063), (6049, 147245), (9205, 96761), (12887, 69115), (13823, 64435), (21035, 42343), (29449, 30245)]