278699889806

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{153749}}^1$

素因数の和:153981

約数の個数: 48

約数和(自身を含む): 469987920000

約数和(自身を除く): 191288030194

約数列:

[1, 2, 13, 26, 31, 62, 169, 173, 338, 346, 403, 806, 2249, 4498, 5239, 5363, 10478, 10726, 29237, 58474, 69719, 139438, 153749, 307498, 906347, 1812694, 1998737, 3997474, 4766219, 9532438, 25983581, 26598577, 51967162, 53197154, 61960847, 123921694, 345781501, 691563002, 805491011, 824555887, 1610982022, 1649111774, 4495159513, 8990319026, 10719226531, 21438453062, 139349944903, 278699889806]

約数ペア:

[(1, 278699889806), (2, 139349944903), (13, 21438453062), (26, 10719226531), (31, 8990319026), (62, 4495159513), (169, 1649111774), (173, 1610982022), (338, 824555887), (346, 805491011), (403, 691563002), (806, 345781501), (2249, 123921694), (4498, 61960847), (5239, 53197154), (5363, 51967162), (10478, 26598577), (10726, 25983581), (29237, 9532438), (58474, 4766219), (69719, 3997474), (139438, 1998737), (153749, 1812694), (307498, 906347)]