20387964

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{719}}^1$

素因数の和:882

約数の個数: 48

約数和(自身を含む): 50803200

約数和(自身を除く): 30415236

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 139, 204, 278, 417, 556, 719, 834, 1438, 1668, 2157, 2363, 2876, 4314, 4726, 7089, 8628, 9452, 12223, 14178, 24446, 28356, 36669, 48892, 73338, 99941, 146676, 199882, 299823, 399764, 599646, 1199292, 1698997, 3397994, 5096991, 6795988, 10193982, 20387964]

約数ペア:

[(1, 20387964), (2, 10193982), (3, 6795988), (4, 5096991), (6, 3397994), (12, 1698997), (17, 1199292), (34, 599646), (51, 399764), (68, 299823), (102, 199882), (139, 146676), (204, 99941), (278, 73338), (417, 48892), (556, 36669), (719, 28356), (834, 24446), (1438, 14178), (1668, 12223), (2157, 9452), (2363, 8628), (2876, 7089), (4314, 4726)]