397181285

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1\times {\mathrm{263}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 514356480

約数和(自身を除く): 117175195

約数列:

[1, 5, 17, 85, 109, 163, 263, 545, 815, 1315, 1853, 2771, 4471, 9265, 13855, 17767, 22355, 28667, 42869, 88835, 143335, 214345, 302039, 487339, 728773, 1510195, 2436695, 3643865, 4672721, 23363605, 79436257, 397181285]

約数ペア:

[(1, 397181285), (5, 79436257), (17, 23363605), (85, 4672721), (109, 3643865), (163, 2436695), (263, 1510195), (545, 728773), (815, 487339), (1315, 302039), (1853, 214345), (2771, 143335), (4471, 88835), (9265, 42869), (13855, 28667), (17767, 22355)]