25020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1$

素因数の和:154

約数の個数: 36

約数和(自身を含む): 76440

約数和(自身を除く): 51420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 4170, 5004, 6255, 8340, 12510, 25020]

約数ペア:

[(1, 25020), (2, 12510), (3, 8340), (4, 6255), (5, 5004), (6, 4170), (9, 2780), (10, 2502), (12, 2085), (15, 1668), (18, 1390), (20, 1251), (30, 834), (36, 695), (45, 556), (60, 417), (90, 278), (139, 180)]