19490960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12823}}^1$

素因数の和:12855

約数の個数: 40

約数和(自身を含む): 47705280

約数和(自身を除く): 28214320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12823, 25646, 51292, 64115, 102584, 128230, 205168, 243637, 256460, 487274, 512920, 974548, 1025840, 1218185, 1949096, 2436370, 3898192, 4872740, 9745480, 19490960]

約数ペア:

[(1, 19490960), (2, 9745480), (4, 4872740), (5, 3898192), (8, 2436370), (10, 1949096), (16, 1218185), (19, 1025840), (20, 974548), (38, 512920), (40, 487274), (76, 256460), (80, 243637), (95, 205168), (152, 128230), (190, 102584), (304, 64115), (380, 51292), (760, 25646), (1520, 12823)]