20180355

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2797}}^1$

素因数の和:2855

約数の個数: 32

約数和(自身を含む): 35724864

約数和(自身を除く): 15544509

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 2797, 7215, 8391, 13985, 36361, 41955, 103489, 109083, 181805, 310467, 517445, 545415, 1345357, 1552335, 4036071, 6726785, 20180355]

約数ペア:

[(1, 20180355), (3, 6726785), (5, 4036071), (13, 1552335), (15, 1345357), (37, 545415), (39, 517445), (65, 310467), (111, 181805), (185, 109083), (195, 103489), (481, 41955), (555, 36361), (1443, 13985), (2405, 8391), (2797, 7215)]