19194420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1987}}^1$

素因数の和:2029

約数の個数: 96

約数和(自身を含む): 64124928

約数和(自身を除く): 44930508

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 1987, 2415, 3220, 3974, 4830, 5961, 7948, 9660, 9935, 11922, 13909, 19870, 23844, 27818, 29805, 39740, 41727, 45701, 55636, 59610, 69545, 83454, 91402, 119220, 137103, 139090, 166908, 182804, 208635, 228505, 274206, 278180, 319907, 417270, 457010, 548412, 639814, 685515, 834540, 914020, 959721, 1279628, 1371030, 1599535, 1919442, 2742060, 3199070, 3838884, 4798605, 6398140, 9597210, 19194420]

約数ペア:

[(1, 19194420), (2, 9597210), (3, 6398140), (4, 4798605), (5, 3838884), (6, 3199070), (7, 2742060), (10, 1919442), (12, 1599535), (14, 1371030), (15, 1279628), (20, 959721), (21, 914020), (23, 834540), (28, 685515), (30, 639814), (35, 548412), (42, 457010), (46, 417270), (60, 319907), (69, 278180), (70, 274206), (84, 228505), (92, 208635), (105, 182804), (115, 166908), (138, 139090), (140, 137103), (161, 119220), (210, 91402), (230, 83454), (276, 69545), (322, 59610), (345, 55636), (420, 45701), (460, 41727), (483, 39740), (644, 29805), (690, 27818), (805, 23844), (966, 19870), (1380, 13909), (1610, 11922), (1932, 9935), (1987, 9660), (2415, 7948), (3220, 5961), (3974, 4830)]