988020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{499}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 3276000

約数和(自身を除く): 2287980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 499, 660, 990, 998, 1497, 1980, 1996, 2495, 2994, 4491, 4990, 5489, 5988, 7485, 8982, 9980, 10978, 14970, 16467, 17964, 21956, 22455, 27445, 29940, 32934, 44910, 49401, 54890, 65868, 82335, 89820, 98802, 109780, 164670, 197604, 247005, 329340, 494010, 988020]

約数ペア:

[(1, 988020), (2, 494010), (3, 329340), (4, 247005), (5, 197604), (6, 164670), (9, 109780), (10, 98802), (11, 89820), (12, 82335), (15, 65868), (18, 54890), (20, 49401), (22, 44910), (30, 32934), (33, 29940), (36, 27445), (44, 22455), (45, 21956), (55, 17964), (60, 16467), (66, 14970), (90, 10978), (99, 9980), (110, 8982), (132, 7485), (165, 5988), (180, 5489), (198, 4990), (220, 4491), (330, 2994), (396, 2495), (495, 1996), (499, 1980), (660, 1497), (990, 998)]