18928640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{3697}}^1$

素因数の和:3722

約数の個数: 44

約数和(自身を含む): 45418836

約数和(自身を除く): 26490196

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 3697, 5120, 7394, 14788, 18485, 29576, 36970, 59152, 73940, 118304, 147880, 236608, 295760, 473216, 591520, 946432, 1183040, 1892864, 2366080, 3785728, 4732160, 9464320, 18928640]

約数ペア:

[(1, 18928640), (2, 9464320), (4, 4732160), (5, 3785728), (8, 2366080), (10, 1892864), (16, 1183040), (20, 946432), (32, 591520), (40, 473216), (64, 295760), (80, 236608), (128, 147880), (160, 118304), (256, 73940), (320, 59152), (512, 36970), (640, 29576), (1024, 18485), (1280, 14788), (2560, 7394), (3697, 5120)]