20406252

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 49496832

約数和(自身を除く): 29090580

約数列:

[1, 2, 3, 4, 6, 12, 43, 71, 86, 129, 142, 172, 213, 258, 284, 426, 516, 557, 852, 1114, 1671, 2228, 3053, 3342, 6106, 6684, 9159, 12212, 18318, 23951, 36636, 39547, 47902, 71853, 79094, 95804, 118641, 143706, 158188, 237282, 287412, 474564, 1700521, 3401042, 5101563, 6802084, 10203126, 20406252]

約数ペア:

[(1, 20406252), (2, 10203126), (3, 6802084), (4, 5101563), (6, 3401042), (12, 1700521), (43, 474564), (71, 287412), (86, 237282), (129, 158188), (142, 143706), (172, 118641), (213, 95804), (258, 79094), (284, 71853), (426, 47902), (516, 39547), (557, 36636), (852, 23951), (1114, 18318), (1671, 12212), (2228, 9159), (3053, 6684), (3342, 6106)]