25005520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{16451}}^1$

素因数の和:16483

約数の個数: 40

約数和(自身を含む): 61201440

約数和(自身を除く): 36195920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 16451, 32902, 65804, 82255, 131608, 164510, 263216, 312569, 329020, 625138, 658040, 1250276, 1316080, 1562845, 2500552, 3125690, 5001104, 6251380, 12502760, 25005520]

約数ペア:

[(1, 25005520), (2, 12502760), (4, 6251380), (5, 5001104), (8, 3125690), (10, 2500552), (16, 1562845), (19, 1316080), (20, 1250276), (38, 658040), (40, 625138), (76, 329020), (80, 312569), (95, 263216), (152, 164510), (190, 131608), (304, 82255), (380, 65804), (760, 32902), (1520, 16451)]