79439420

素因数分解:

$2^2\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{2819}}^1$

素因数の和:4237

約数の個数: 24

約数和(自身を含む): 167000400

約数和(自身を除く): 87560980

約数列:

[1, 2, 4, 5, 10, 20, 1409, 2818, 2819, 5636, 5638, 7045, 11276, 14090, 14095, 28180, 28190, 56380, 3971971, 7943942, 15887884, 19859855, 39719710, 79439420]

約数ペア:

[(1, 79439420), (2, 39719710), (4, 19859855), (5, 15887884), (10, 7943942), (20, 3971971), (1409, 56380), (2818, 28190), (2819, 28180), (5636, 14095), (5638, 14090), (7045, 11276)]