81702160

素因数分解:

$2^4\times 5^1\times {\mathrm{191}}^1\times {\mathrm{5347}}^1$

素因数の和:5551

約数の個数: 40

約数和(自身を含む): 190987776

約数和(自身を除く): 109285616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 191, 382, 764, 955, 1528, 1910, 3056, 3820, 5347, 7640, 10694, 15280, 21388, 26735, 42776, 53470, 85552, 106940, 213880, 427760, 1021277, 2042554, 4085108, 5106385, 8170216, 10212770, 16340432, 20425540, 40851080, 81702160]

約数ペア:

[(1, 81702160), (2, 40851080), (4, 20425540), (5, 16340432), (8, 10212770), (10, 8170216), (16, 5106385), (20, 4085108), (40, 2042554), (80, 1021277), (191, 427760), (382, 213880), (764, 106940), (955, 85552), (1528, 53470), (1910, 42776), (3056, 26735), (3820, 21388), (5347, 15280), (7640, 10694)]