18972160

素因数分解:

$2^9\times 5^1\times {\mathrm{7411}}^1$

素因数の和:7434

約数の個数: 40

約数和(自身を含む): 45494856

約数和(自身を除く): 26522696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7411, 14822, 29644, 37055, 59288, 74110, 118576, 148220, 237152, 296440, 474304, 592880, 948608, 1185760, 1897216, 2371520, 3794432, 4743040, 9486080, 18972160]

約数ペア:

[(1, 18972160), (2, 9486080), (4, 4743040), (5, 3794432), (8, 2371520), (10, 1897216), (16, 1185760), (20, 948608), (32, 592880), (40, 474304), (64, 296440), (80, 237152), (128, 148220), (160, 118576), (256, 74110), (320, 59288), (512, 37055), (640, 29644), (1280, 14822), (2560, 7411)]