3949880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 9953280

約数和(自身を除く): 6003400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 191, 220, 235, 376, 382, 440, 470, 517, 764, 940, 955, 1034, 1528, 1880, 1910, 2068, 2101, 2585, 3820, 4136, 4202, 5170, 7640, 8404, 8977, 10340, 10505, 16808, 17954, 20680, 21010, 35908, 42020, 44885, 71816, 84040, 89770, 98747, 179540, 197494, 359080, 394988, 493735, 789976, 987470, 1974940, 3949880]

約数ペア:

[(1, 3949880), (2, 1974940), (4, 987470), (5, 789976), (8, 493735), (10, 394988), (11, 359080), (20, 197494), (22, 179540), (40, 98747), (44, 89770), (47, 84040), (55, 71816), (88, 44885), (94, 42020), (110, 35908), (188, 21010), (191, 20680), (220, 17954), (235, 16808), (376, 10505), (382, 10340), (440, 8977), (470, 8404), (517, 7640), (764, 5170), (940, 4202), (955, 4136), (1034, 3820), (1528, 2585), (1880, 2101), (1910, 2068)]