815660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2399}}^1$

素因数の和:2425

約数の個数: 24

約数和(自身を含む): 1814400

約数和(自身を除く): 998740

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2399, 4798, 9596, 11995, 23990, 40783, 47980, 81566, 163132, 203915, 407830, 815660]

約数ペア:

[(1, 815660), (2, 407830), (4, 203915), (5, 163132), (10, 81566), (17, 47980), (20, 40783), (34, 23990), (68, 11995), (85, 9596), (170, 4798), (340, 2399)]