663340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1951}}^1$

素因数の和:1977

約数の個数: 24

約数和(自身を含む): 1475712

約数和(自身を除く): 812372

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1951, 3902, 7804, 9755, 19510, 33167, 39020, 66334, 132668, 165835, 331670, 663340]

約数ペア:

[(1, 663340), (2, 331670), (4, 165835), (5, 132668), (10, 66334), (17, 39020), (20, 33167), (34, 19510), (68, 9755), (85, 7804), (170, 3902), (340, 1951)]