1557236480

素因数分解:

$2^8\times 5^1\times {\mathrm{1216591}}^1$

素因数の和:1216612

約数の個数: 36

約数和(自身を含む): 3730071072

約数和(自身を除く): 2172834592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1216591, 2433182, 4866364, 6082955, 9732728, 12165910, 19465456, 24331820, 38930912, 48663640, 77861824, 97327280, 155723648, 194654560, 311447296, 389309120, 778618240, 1557236480]

約数ペア:

[(1, 1557236480), (2, 778618240), (4, 389309120), (5, 311447296), (8, 194654560), (10, 155723648), (16, 97327280), (20, 77861824), (32, 48663640), (40, 38930912), (64, 24331820), (80, 19465456), (128, 12165910), (160, 9732728), (256, 6082955), (320, 4866364), (640, 2433182), (1280, 1216591)]