201881900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{823}}^1$

素因数の和:1071

約数の個数: 72

約数和(自身を含む): 480635904

約数和(自身を除く): 278754004

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 223, 275, 446, 550, 823, 892, 1100, 1115, 1646, 2230, 2453, 3292, 4115, 4460, 4906, 5575, 8230, 9053, 9812, 11150, 12265, 16460, 18106, 20575, 22300, 24530, 36212, 41150, 45265, 49060, 61325, 82300, 90530, 122650, 181060, 183529, 226325, 245300, 367058, 452650, 734116, 905300, 917645, 1835290, 2018819, 3670580, 4037638, 4588225, 8075276, 9176450, 10094095, 18352900, 20188190, 40376380, 50470475, 100940950, 201881900]

約数ペア:

[(1, 201881900), (2, 100940950), (4, 50470475), (5, 40376380), (10, 20188190), (11, 18352900), (20, 10094095), (22, 9176450), (25, 8075276), (44, 4588225), (50, 4037638), (55, 3670580), (100, 2018819), (110, 1835290), (220, 917645), (223, 905300), (275, 734116), (446, 452650), (550, 367058), (823, 245300), (892, 226325), (1100, 183529), (1115, 181060), (1646, 122650), (2230, 90530), (2453, 82300), (3292, 61325), (4115, 49060), (4460, 45265), (4906, 41150), (5575, 36212), (8230, 24530), (9053, 22300), (9812, 20575), (11150, 18106), (12265, 16460)]