19435880

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{751}}^1$

素因数の和:1409

約数の個数: 32

約数和(自身を含む): 43856640

約数和(自身を除く): 24420760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 751, 1294, 1502, 2588, 3004, 3235, 3755, 5176, 6008, 6470, 7510, 12940, 15020, 25880, 30040, 485897, 971794, 1943588, 2429485, 3887176, 4858970, 9717940, 19435880]

約数ペア:

[(1, 19435880), (2, 9717940), (4, 4858970), (5, 3887176), (8, 2429485), (10, 1943588), (20, 971794), (40, 485897), (647, 30040), (751, 25880), (1294, 15020), (1502, 12940), (2588, 7510), (3004, 6470), (3235, 6008), (3755, 5176)]