19209190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:158

約数の個数: 128

約数和(自身を含む): 49351680

約数和(自身を除く): 30142490

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 19, 22, 26, 35, 38, 55, 65, 70, 77, 91, 95, 101, 110, 130, 133, 143, 154, 182, 190, 202, 209, 247, 266, 286, 385, 418, 455, 494, 505, 665, 707, 715, 770, 910, 1001, 1010, 1045, 1111, 1235, 1313, 1330, 1414, 1430, 1463, 1729, 1919, 2002, 2090, 2222, 2470, 2626, 2717, 2926, 3458, 3535, 3838, 5005, 5434, 5555, 6565, 7070, 7315, 7777, 8645, 9191, 9595, 10010, 11110, 13130, 13433, 13585, 14443, 14630, 15554, 17290, 18382, 19019, 19190, 21109, 24947, 26866, 27170, 28886, 38038, 38885, 42218, 45955, 49894, 67165, 72215, 77770, 91910, 95095, 101101, 105545, 124735, 134330, 144430, 147763, 174629, 190190, 202202, 211090, 249470, 274417, 295526, 349258, 505505, 548834, 738815, 873145, 1011010, 1372085, 1477630, 1746290, 1920919, 2744170, 3841838, 9604595, 19209190]

約数ペア:

[(1, 19209190), (2, 9604595), (5, 3841838), (7, 2744170), (10, 1920919), (11, 1746290), (13, 1477630), (14, 1372085), (19, 1011010), (22, 873145), (26, 738815), (35, 548834), (38, 505505), (55, 349258), (65, 295526), (70, 274417), (77, 249470), (91, 211090), (95, 202202), (101, 190190), (110, 174629), (130, 147763), (133, 144430), (143, 134330), (154, 124735), (182, 105545), (190, 101101), (202, 95095), (209, 91910), (247, 77770), (266, 72215), (286, 67165), (385, 49894), (418, 45955), (455, 42218), (494, 38885), (505, 38038), (665, 28886), (707, 27170), (715, 26866), (770, 24947), (910, 21109), (1001, 19190), (1010, 19019), (1045, 18382), (1111, 17290), (1235, 15554), (1313, 14630), (1330, 14443), (1414, 13585), (1430, 13433), (1463, 13130), (1729, 11110), (1919, 10010), (2002, 9595), (2090, 9191), (2222, 8645), (2470, 7777), (2626, 7315), (2717, 7070), (2926, 6565), (3458, 5555), (3535, 5434), (3838, 5005)]