813304040

素因数分解:

$2^3\times 5^1\times {\mathrm{719}}^1\times {\mathrm{28279}}^1$

素因数の和:29009

約数の個数: 32

約数和(自身を含む): 1832544000

約数和(自身を除く): 1019239960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 719, 1438, 2876, 3595, 5752, 7190, 14380, 28279, 28760, 56558, 113116, 141395, 226232, 282790, 565580, 1131160, 20332601, 40665202, 81330404, 101663005, 162660808, 203326010, 406652020, 813304040]

約数ペア:

[(1, 813304040), (2, 406652020), (4, 203326010), (5, 162660808), (8, 101663005), (10, 81330404), (20, 40665202), (40, 20332601), (719, 1131160), (1438, 565580), (2876, 282790), (3595, 226232), (5752, 141395), (7190, 113116), (14380, 56558), (28279, 28760)]