207865900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{419}}^1$

素因数の和:496

約数の個数: 108

約数和(自身を含む): 509108040

約数和(自身を除く): 301242140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 41, 44, 50, 55, 82, 100, 110, 121, 164, 205, 220, 242, 275, 410, 419, 451, 484, 550, 605, 820, 838, 902, 1025, 1100, 1210, 1676, 1804, 2050, 2095, 2255, 2420, 3025, 4100, 4190, 4510, 4609, 4961, 6050, 8380, 9020, 9218, 9922, 10475, 11275, 12100, 17179, 18436, 19844, 20950, 22550, 23045, 24805, 34358, 41900, 45100, 46090, 49610, 50699, 68716, 85895, 92180, 99220, 101398, 115225, 124025, 171790, 188969, 202796, 230450, 248050, 253495, 343580, 377938, 429475, 460900, 496100, 506990, 755876, 858950, 944845, 1013980, 1267475, 1717900, 1889690, 2078659, 2534950, 3779380, 4157318, 4724225, 5069900, 8314636, 9448450, 10393295, 18896900, 20786590, 41573180, 51966475, 103932950, 207865900]

約数ペア:

[(1, 207865900), (2, 103932950), (4, 51966475), (5, 41573180), (10, 20786590), (11, 18896900), (20, 10393295), (22, 9448450), (25, 8314636), (41, 5069900), (44, 4724225), (50, 4157318), (55, 3779380), (82, 2534950), (100, 2078659), (110, 1889690), (121, 1717900), (164, 1267475), (205, 1013980), (220, 944845), (242, 858950), (275, 755876), (410, 506990), (419, 496100), (451, 460900), (484, 429475), (550, 377938), (605, 343580), (820, 253495), (838, 248050), (902, 230450), (1025, 202796), (1100, 188969), (1210, 171790), (1676, 124025), (1804, 115225), (2050, 101398), (2095, 99220), (2255, 92180), (2420, 85895), (3025, 68716), (4100, 50699), (4190, 49610), (4510, 46090), (4609, 45100), (4961, 41900), (6050, 34358), (8380, 24805), (9020, 23045), (9218, 22550), (9922, 20950), (10475, 19844), (11275, 18436), (12100, 17179)]