218216020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{709}}^1\times {\mathrm{1399}}^1$

素因数の和:2128

約数の個数: 48

約数和(自身を含む): 500976000

約数和(自身を除く): 282759980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 709, 1399, 1418, 2798, 2836, 3545, 5596, 6995, 7090, 7799, 13990, 14180, 15389, 15598, 27980, 30778, 31196, 38995, 61556, 76945, 77990, 153890, 155980, 307780, 991891, 1983782, 3967564, 4959455, 9918910, 10910801, 19837820, 21821602, 43643204, 54554005, 109108010, 218216020]

約数ペア:

[(1, 218216020), (2, 109108010), (4, 54554005), (5, 43643204), (10, 21821602), (11, 19837820), (20, 10910801), (22, 9918910), (44, 4959455), (55, 3967564), (110, 1983782), (220, 991891), (709, 307780), (1399, 155980), (1418, 153890), (2798, 77990), (2836, 76945), (3545, 61556), (5596, 38995), (6995, 31196), (7090, 30778), (7799, 27980), (13990, 15598), (14180, 15389)]