85256920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{304489}}^1$

素因数の和:304507

約数の個数: 32

約数和(自身を含む): 219232800

約数和(自身を除く): 133975880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 304489, 608978, 1217956, 1522445, 2131423, 2435912, 3044890, 4262846, 6089780, 8525692, 10657115, 12179560, 17051384, 21314230, 42628460, 85256920]

約数ペア:

[(1, 85256920), (2, 42628460), (4, 21314230), (5, 17051384), (7, 12179560), (8, 10657115), (10, 8525692), (14, 6089780), (20, 4262846), (28, 3044890), (35, 2435912), (40, 2131423), (56, 1522445), (70, 1217956), (140, 608978), (280, 304489)]