111077780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{4999}}^1$

素因数の和:5120

約数の個数: 48

約数和(自身を含む): 257040000

約数和(自身を除く): 145962220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1111, 2020, 2222, 4444, 4999, 5555, 9998, 11110, 19996, 22220, 24995, 49990, 54989, 99980, 109978, 219956, 274945, 504899, 549890, 1009798, 1099780, 2019596, 2524495, 5048990, 5553889, 10097980, 11107778, 22215556, 27769445, 55538890, 111077780]

約数ペア:

[(1, 111077780), (2, 55538890), (4, 27769445), (5, 22215556), (10, 11107778), (11, 10097980), (20, 5553889), (22, 5048990), (44, 2524495), (55, 2019596), (101, 1099780), (110, 1009798), (202, 549890), (220, 504899), (404, 274945), (505, 219956), (1010, 109978), (1111, 99980), (2020, 54989), (2222, 49990), (4444, 24995), (4999, 22220), (5555, 19996), (9998, 11110)]