19222160

素因数分解:

$2^4\times 5^1\times {\mathrm{241}}^1\times {\mathrm{997}}^1$

素因数の和:1251

約数の個数: 40

約数和(自身を含む): 44921976

約数和(自身を除く): 25699816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241, 482, 964, 997, 1205, 1928, 1994, 2410, 3856, 3988, 4820, 4985, 7976, 9640, 9970, 15952, 19280, 19940, 39880, 79760, 240277, 480554, 961108, 1201385, 1922216, 2402770, 3844432, 4805540, 9611080, 19222160]

約数ペア:

[(1, 19222160), (2, 9611080), (4, 4805540), (5, 3844432), (8, 2402770), (10, 1922216), (16, 1201385), (20, 961108), (40, 480554), (80, 240277), (241, 79760), (482, 39880), (964, 19940), (997, 19280), (1205, 15952), (1928, 9970), (1994, 9640), (2410, 7976), (3856, 4985), (3988, 4820)]