72542840

素因数分解:

$2^3\times 5^1\times {\mathrm{463}}^1\times {\mathrm{3917}}^1$

素因数の和:4391

約数の個数: 32

約数和(自身を含む): 163615680

約数和(自身を除く): 91072840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 463, 926, 1852, 2315, 3704, 3917, 4630, 7834, 9260, 15668, 18520, 19585, 31336, 39170, 78340, 156680, 1813571, 3627142, 7254284, 9067855, 14508568, 18135710, 36271420, 72542840]

約数ペア:

[(1, 72542840), (2, 36271420), (4, 18135710), (5, 14508568), (8, 9067855), (10, 7254284), (20, 3627142), (40, 1813571), (463, 156680), (926, 78340), (1852, 39170), (2315, 31336), (3704, 19585), (3917, 18520), (4630, 15668), (7834, 9260)]