988790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:208

約数の個数: 32

約数和(自身を含む): 1982880

約数和(自身を除く): 994090

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 101, 110, 178, 202, 445, 505, 890, 979, 1010, 1111, 1958, 2222, 4895, 5555, 8989, 9790, 11110, 17978, 44945, 89890, 98879, 197758, 494395, 988790]

約数ペア:

[(1, 988790), (2, 494395), (5, 197758), (10, 98879), (11, 89890), (22, 44945), (55, 17978), (89, 11110), (101, 9790), (110, 8989), (178, 5555), (202, 4895), (445, 2222), (505, 1958), (890, 1111), (979, 1010)]