18121240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19697}}^1$

素因数の和:19731

約数の個数: 32

約数和(自身を含む): 42547680

約数和(自身を除く): 24426440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 19697, 39394, 78788, 98485, 157576, 196970, 393940, 453031, 787880, 906062, 1812124, 2265155, 3624248, 4530310, 9060620, 18121240]

約数ペア:

[(1, 18121240), (2, 9060620), (4, 4530310), (5, 3624248), (8, 2265155), (10, 1812124), (20, 906062), (23, 787880), (40, 453031), (46, 393940), (92, 196970), (115, 157576), (184, 98485), (230, 78788), (460, 39394), (920, 19697)]