209240900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{853}}^1$

素因数の和:1101

約数の個数: 72

約数和(自身を含む): 498134784

約数和(自身を除く): 288893884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 223, 275, 446, 550, 853, 892, 1100, 1115, 1706, 2230, 2453, 3412, 4265, 4460, 4906, 5575, 8530, 9383, 9812, 11150, 12265, 17060, 18766, 21325, 22300, 24530, 37532, 42650, 46915, 49060, 61325, 85300, 93830, 122650, 187660, 190219, 234575, 245300, 380438, 469150, 760876, 938300, 951095, 1902190, 2092409, 3804380, 4184818, 4755475, 8369636, 9510950, 10462045, 19021900, 20924090, 41848180, 52310225, 104620450, 209240900]

約数ペア:

[(1, 209240900), (2, 104620450), (4, 52310225), (5, 41848180), (10, 20924090), (11, 19021900), (20, 10462045), (22, 9510950), (25, 8369636), (44, 4755475), (50, 4184818), (55, 3804380), (100, 2092409), (110, 1902190), (220, 951095), (223, 938300), (275, 760876), (446, 469150), (550, 380438), (853, 245300), (892, 234575), (1100, 190219), (1115, 187660), (1706, 122650), (2230, 93830), (2453, 85300), (3412, 61325), (4265, 49060), (4460, 46915), (4906, 42650), (5575, 37532), (8530, 24530), (9383, 22300), (9812, 21325), (11150, 18766), (12265, 17060)]