20318180

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27457}}^1$

素因数の和:27503

約数の個数: 24

約数和(自身を含む): 43822968

約数和(自身を除く): 23504788

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 27457, 54914, 109828, 137285, 274570, 549140, 1015909, 2031818, 4063636, 5079545, 10159090, 20318180]

約数ペア:

[(1, 20318180), (2, 10159090), (4, 5079545), (5, 4063636), (10, 2031818), (20, 1015909), (37, 549140), (74, 274570), (148, 137285), (185, 109828), (370, 54914), (740, 27457)]