19566340

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 42728112

約数和(自身を除く): 23161772

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 137, 148, 185, 193, 274, 370, 386, 548, 685, 740, 772, 965, 1370, 1930, 2740, 3860, 5069, 7141, 10138, 14282, 20276, 25345, 26441, 28564, 35705, 50690, 52882, 71410, 101380, 105764, 132205, 142820, 264410, 528820, 978317, 1956634, 3913268, 4891585, 9783170, 19566340]

約数ペア:

[(1, 19566340), (2, 9783170), (4, 4891585), (5, 3913268), (10, 1956634), (20, 978317), (37, 528820), (74, 264410), (137, 142820), (148, 132205), (185, 105764), (193, 101380), (274, 71410), (370, 52882), (386, 50690), (548, 35705), (685, 28564), (740, 26441), (772, 25345), (965, 20276), (1370, 14282), (1930, 10138), (2740, 7141), (3860, 5069)]