40820480

素因数分解:

$2^8\times 5^1\times {\mathrm{31891}}^1$

素因数の和:31912

約数の個数: 36

約数和(自身を含む): 97780872

約数和(自身を除く): 56960392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 31891, 63782, 127564, 159455, 255128, 318910, 510256, 637820, 1020512, 1275640, 2041024, 2551280, 4082048, 5102560, 8164096, 10205120, 20410240, 40820480]

約数ペア:

[(1, 40820480), (2, 20410240), (4, 10205120), (5, 8164096), (8, 5102560), (10, 4082048), (16, 2551280), (20, 2041024), (32, 1275640), (40, 1020512), (64, 637820), (80, 510256), (128, 318910), (160, 255128), (256, 159455), (320, 127564), (640, 63782), (1280, 31891)]