8004440

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2063}}^1$

素因数の和:2171

約数の個数: 32

約数和(自身を含む): 18204480

約数和(自身を除く): 10200040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 2063, 3880, 4126, 8252, 10315, 16504, 20630, 41260, 82520, 200111, 400222, 800444, 1000555, 1600888, 2001110, 4002220, 8004440]

約数ペア:

[(1, 8004440), (2, 4002220), (4, 2001110), (5, 1600888), (8, 1000555), (10, 800444), (20, 400222), (40, 200111), (97, 82520), (194, 41260), (388, 20630), (485, 16504), (776, 10315), (970, 8252), (1940, 4126), (2063, 3880)]