2668660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 6096384

約数和(自身を除く): 3427724

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 167, 170, 188, 235, 334, 340, 470, 668, 799, 835, 940, 1598, 1670, 2839, 3196, 3340, 3995, 5678, 7849, 7990, 11356, 14195, 15698, 15980, 28390, 31396, 39245, 56780, 78490, 133433, 156980, 266866, 533732, 667165, 1334330, 2668660]

約数ペア:

[(1, 2668660), (2, 1334330), (4, 667165), (5, 533732), (10, 266866), (17, 156980), (20, 133433), (34, 78490), (47, 56780), (68, 39245), (85, 31396), (94, 28390), (167, 15980), (170, 15698), (188, 14195), (235, 11356), (334, 7990), (340, 7849), (470, 5678), (668, 3995), (799, 3340), (835, 3196), (940, 2839), (1598, 1670)]