138218920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{25981}}^1$

素因数の和:26018

約数の個数: 64

約数和(自身を含む): 374140800

約数和(自身を除く): 235921880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 25981, 51962, 103924, 129905, 181867, 207848, 259810, 363734, 493639, 519620, 727468, 909335, 987278, 1039240, 1454936, 1818670, 1974556, 2468195, 3455473, 3637340, 3949112, 4936390, 6910946, 7274680, 9872780, 13821892, 17277365, 19745560, 27643784, 34554730, 69109460, 138218920]

約数ペア:

[(1, 138218920), (2, 69109460), (4, 34554730), (5, 27643784), (7, 19745560), (8, 17277365), (10, 13821892), (14, 9872780), (19, 7274680), (20, 6910946), (28, 4936390), (35, 3949112), (38, 3637340), (40, 3455473), (56, 2468195), (70, 1974556), (76, 1818670), (95, 1454936), (133, 1039240), (140, 987278), (152, 909335), (190, 727468), (266, 519620), (280, 493639), (380, 363734), (532, 259810), (665, 207848), (760, 181867), (1064, 129905), (1330, 103924), (2660, 51962), (5320, 25981)]