18414640

素因数分解:

$2^4\times 5^1\times {\mathrm{383}}^1\times {\mathrm{601}}^1$

素因数の和:997

約数の個数: 40

約数和(自身を含む): 42997248

約数和(自身を除く): 24582608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 383, 601, 766, 1202, 1532, 1915, 2404, 3005, 3064, 3830, 4808, 6010, 6128, 7660, 9616, 12020, 15320, 24040, 30640, 48080, 230183, 460366, 920732, 1150915, 1841464, 2301830, 3682928, 4603660, 9207320, 18414640]

約数ペア:

[(1, 18414640), (2, 9207320), (4, 4603660), (5, 3682928), (8, 2301830), (10, 1841464), (16, 1150915), (20, 920732), (40, 460366), (80, 230183), (383, 48080), (601, 30640), (766, 24040), (1202, 15320), (1532, 12020), (1915, 9616), (2404, 7660), (3005, 6128), (3064, 6010), (3830, 4808)]