13920640

素因数分解:

$2^7\times 5^1\times {\mathrm{21751}}^1$

素因数の和:21770

約数の個数: 32

約数和(自身を含む): 33280560

約数和(自身を除く): 19359920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 21751, 43502, 87004, 108755, 174008, 217510, 348016, 435020, 696032, 870040, 1392064, 1740080, 2784128, 3480160, 6960320, 13920640]

約数ペア:

[(1, 13920640), (2, 6960320), (4, 3480160), (5, 2784128), (8, 1740080), (10, 1392064), (16, 870040), (20, 696032), (32, 435020), (40, 348016), (64, 217510), (80, 174008), (128, 108755), (160, 87004), (320, 43502), (640, 21751)]