1982688640

素因数分解:

$2^7\times 5^1\times {\mathrm{3097951}}^1$

素因数の和:3097970

約数の個数: 32

約数和(自身を含む): 4739866560

約数和(自身を除く): 2757177920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 3097951, 6195902, 12391804, 15489755, 24783608, 30979510, 49567216, 61959020, 99134432, 123918040, 198268864, 247836080, 396537728, 495672160, 991344320, 1982688640]

約数ペア:

[(1, 1982688640), (2, 991344320), (4, 495672160), (5, 396537728), (8, 247836080), (10, 198268864), (16, 123918040), (20, 99134432), (32, 61959020), (40, 49567216), (64, 30979510), (80, 24783608), (128, 15489755), (160, 12391804), (320, 6195902), (640, 3097951)]