28505740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2062

約数の個数: 48

約数和(自身を含む): 64512000

約数和(自身を除く): 36006260

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 230, 310, 460, 620, 713, 1426, 1999, 2852, 3565, 3998, 7130, 7996, 9995, 14260, 19990, 39980, 45977, 61969, 91954, 123938, 183908, 229885, 247876, 309845, 459770, 619690, 919540, 1239380, 1425287, 2850574, 5701148, 7126435, 14252870, 28505740]

約数ペア:

[(1, 28505740), (2, 14252870), (4, 7126435), (5, 5701148), (10, 2850574), (20, 1425287), (23, 1239380), (31, 919540), (46, 619690), (62, 459770), (92, 309845), (115, 247876), (124, 229885), (155, 183908), (230, 123938), (310, 91954), (460, 61969), (620, 45977), (713, 39980), (1426, 19990), (1999, 14260), (2852, 9995), (3565, 7996), (3998, 7130)]