18886940

素因数分解:

$2^2\times 5^1\times {\mathrm{659}}^1\times {\mathrm{1433}}^1$

素因数の和:2101

約数の個数: 24

約数和(自身を含む): 39750480

約数和(自身を除く): 20863540

約数列:

[1, 2, 4, 5, 10, 20, 659, 1318, 1433, 2636, 2866, 3295, 5732, 6590, 7165, 13180, 14330, 28660, 944347, 1888694, 3777388, 4721735, 9443470, 18886940]

約数ペア:

[(1, 18886940), (2, 9443470), (4, 4721735), (5, 3777388), (10, 1888694), (20, 944347), (659, 28660), (1318, 14330), (1433, 13180), (2636, 7165), (2866, 6590), (3295, 5732)]