2020120820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{118691}}^1$

素因数の和:118760

約数の個数: 48

約数和(自身を含む): 4546378368

約数和(自身を除く): 2526257548

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 740, 851, 1702, 3404, 4255, 8510, 17020, 118691, 237382, 474764, 593455, 1186910, 2373820, 2729893, 4391567, 5459786, 8783134, 10919572, 13649465, 17566268, 21957835, 27298930, 43915670, 54597860, 87831340, 101006041, 202012082, 404024164, 505030205, 1010060410, 2020120820]

約数ペア:

[(1, 2020120820), (2, 1010060410), (4, 505030205), (5, 404024164), (10, 202012082), (20, 101006041), (23, 87831340), (37, 54597860), (46, 43915670), (74, 27298930), (92, 21957835), (115, 17566268), (148, 13649465), (185, 10919572), (230, 8783134), (370, 5459786), (460, 4391567), (740, 2729893), (851, 2373820), (1702, 1186910), (3404, 593455), (4255, 474764), (8510, 237382), (17020, 118691)]