20410240

素因数分解:

$2^7\times 5^1\times {\mathrm{31891}}^1$

素因数の和:31910

約数の個数: 32

約数和(自身を含む): 48794760

約数和(自身を除く): 28384520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31891, 63782, 127564, 159455, 255128, 318910, 510256, 637820, 1020512, 1275640, 2041024, 2551280, 4082048, 5102560, 10205120, 20410240]

約数ペア:

[(1, 20410240), (2, 10205120), (4, 5102560), (5, 4082048), (8, 2551280), (10, 2041024), (16, 1275640), (20, 1020512), (32, 637820), (40, 510256), (64, 318910), (80, 255128), (128, 159455), (160, 127564), (320, 63782), (640, 31891)]