78631025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 113832000

約数和(自身を除く): 35200975

約数列:

[1, 5, 11, 19, 25, 55, 95, 101, 149, 209, 275, 475, 505, 745, 1045, 1111, 1639, 1919, 2525, 2831, 3725, 5225, 5555, 8195, 9595, 14155, 15049, 21109, 27775, 31141, 40975, 47975, 70775, 75245, 105545, 155705, 165539, 285931, 376225, 527725, 778525, 827695, 1429655, 3145241, 4138475, 7148275, 15726205, 78631025]

約数ペア:

[(1, 78631025), (5, 15726205), (11, 7148275), (19, 4138475), (25, 3145241), (55, 1429655), (95, 827695), (101, 778525), (149, 527725), (209, 376225), (275, 285931), (475, 165539), (505, 155705), (745, 105545), (1045, 75245), (1111, 70775), (1639, 47975), (1919, 40975), (2525, 31141), (2831, 27775), (3725, 21109), (5225, 15049), (5555, 14155), (8195, 9595)]