18398720

素因数分解:

$2^9\times 5^1\times {\mathrm{7187}}^1$

素因数の和:7210

約数の個数: 40

約数和(自身を含む): 44119944

約数和(自身を除く): 25721224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7187, 14374, 28748, 35935, 57496, 71870, 114992, 143740, 229984, 287480, 459968, 574960, 919936, 1149920, 1839872, 2299840, 3679744, 4599680, 9199360, 18398720]

約数ペア:

[(1, 18398720), (2, 9199360), (4, 4599680), (5, 3679744), (8, 2299840), (10, 1839872), (16, 1149920), (20, 919936), (32, 574960), (40, 459968), (64, 287480), (80, 229984), (128, 143740), (160, 114992), (256, 71870), (320, 57496), (512, 35935), (640, 28748), (1280, 14374), (2560, 7187)]