55128520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{193}}^2$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 128055060

約数和(自身を除く): 72926540

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 193, 296, 370, 386, 740, 772, 965, 1480, 1544, 1930, 3860, 7141, 7720, 14282, 28564, 35705, 37249, 57128, 71410, 74498, 142820, 148996, 186245, 285640, 297992, 372490, 744980, 1378213, 1489960, 2756426, 5512852, 6891065, 11025704, 13782130, 27564260, 55128520]

約数ペア:

[(1, 55128520), (2, 27564260), (4, 13782130), (5, 11025704), (8, 6891065), (10, 5512852), (20, 2756426), (37, 1489960), (40, 1378213), (74, 744980), (148, 372490), (185, 297992), (193, 285640), (296, 186245), (370, 148996), (386, 142820), (740, 74498), (772, 71410), (965, 57128), (1480, 37249), (1544, 35705), (1930, 28564), (3860, 14282), (7141, 7720)]