6686780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 15132096

約数和(自身を除く): 8445316

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 277, 284, 340, 355, 554, 710, 1108, 1207, 1385, 1420, 2414, 2770, 4709, 4828, 5540, 6035, 9418, 12070, 18836, 19667, 23545, 24140, 39334, 47090, 78668, 94180, 98335, 196670, 334339, 393340, 668678, 1337356, 1671695, 3343390, 6686780]

約数ペア:

[(1, 6686780), (2, 3343390), (4, 1671695), (5, 1337356), (10, 668678), (17, 393340), (20, 334339), (34, 196670), (68, 98335), (71, 94180), (85, 78668), (142, 47090), (170, 39334), (277, 24140), (284, 23545), (340, 19667), (355, 18836), (554, 12070), (710, 9418), (1108, 6035), (1207, 5540), (1385, 4828), (1420, 4709), (2414, 2770)]