12309880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{277}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 30624480

約数和(自身を除く): 18314600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 101, 110, 202, 220, 277, 404, 440, 505, 554, 808, 1010, 1108, 1111, 1385, 2020, 2216, 2222, 2770, 3047, 4040, 4444, 5540, 5555, 6094, 8888, 11080, 11110, 12188, 15235, 22220, 24376, 27977, 30470, 44440, 55954, 60940, 111908, 121880, 139885, 223816, 279770, 307747, 559540, 615494, 1119080, 1230988, 1538735, 2461976, 3077470, 6154940, 12309880]

約数ペア:

[(1, 12309880), (2, 6154940), (4, 3077470), (5, 2461976), (8, 1538735), (10, 1230988), (11, 1119080), (20, 615494), (22, 559540), (40, 307747), (44, 279770), (55, 223816), (88, 139885), (101, 121880), (110, 111908), (202, 60940), (220, 55954), (277, 44440), (404, 30470), (440, 27977), (505, 24376), (554, 22220), (808, 15235), (1010, 12188), (1108, 11110), (1111, 11080), (1385, 8888), (2020, 6094), (2216, 5555), (2222, 5540), (2770, 4444), (3047, 4040)]