81586180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{1879}}^1$

素因数の和:2068

約数の個数: 48

約数和(自身を含む): 185713920

約数和(自身を除く): 104127740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 167, 260, 334, 668, 835, 1670, 1879, 2171, 3340, 3758, 4342, 7516, 8684, 9395, 10855, 18790, 21710, 24427, 37580, 43420, 48854, 97708, 122135, 244270, 313793, 488540, 627586, 1255172, 1568965, 3137930, 4079309, 6275860, 8158618, 16317236, 20396545, 40793090, 81586180]

約数ペア:

[(1, 81586180), (2, 40793090), (4, 20396545), (5, 16317236), (10, 8158618), (13, 6275860), (20, 4079309), (26, 3137930), (52, 1568965), (65, 1255172), (130, 627586), (167, 488540), (260, 313793), (334, 244270), (668, 122135), (835, 97708), (1670, 48854), (1879, 43420), (2171, 37580), (3340, 24427), (3758, 21710), (4342, 18790), (7516, 10855), (8684, 9395)]