19274480

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1223}}^1$

素因数の和:1433

約数の個数: 40

約数和(自身を含む): 45077472

約数和(自身を除く): 25802992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1223, 1576, 1970, 2446, 3152, 3940, 4892, 6115, 7880, 9784, 12230, 15760, 19568, 24460, 48920, 97840, 240931, 481862, 963724, 1204655, 1927448, 2409310, 3854896, 4818620, 9637240, 19274480]

約数ペア:

[(1, 19274480), (2, 9637240), (4, 4818620), (5, 3854896), (8, 2409310), (10, 1927448), (16, 1204655), (20, 963724), (40, 481862), (80, 240931), (197, 97840), (394, 48920), (788, 24460), (985, 19568), (1223, 15760), (1576, 12230), (1970, 9784), (2446, 7880), (3152, 6115), (3940, 4892)]