19169920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1$

素因数の和:426

約数の個数: 128

約数和(自身を含む): 57283200

約数和(自身を除く): 38113280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 389, 440, 448, 560, 616, 640, 704, 770, 778, 880, 896, 1120, 1232, 1408, 1540, 1556, 1760, 1945, 2240, 2464, 2723, 3080, 3112, 3520, 3890, 4279, 4480, 4928, 5446, 6160, 6224, 7040, 7780, 8558, 9856, 10892, 12320, 12448, 13615, 15560, 17116, 21395, 21784, 24640, 24896, 27230, 29953, 31120, 34232, 42790, 43568, 49280, 49792, 54460, 59906, 62240, 68464, 85580, 87136, 108920, 119812, 124480, 136928, 149765, 171160, 174272, 217840, 239624, 248960, 273856, 299530, 342320, 348544, 435680, 479248, 547712, 599060, 684640, 871360, 958496, 1198120, 1369280, 1742720, 1916992, 2396240, 2738560, 3833984, 4792480, 9584960, 19169920]

約数ペア:

[(1, 19169920), (2, 9584960), (4, 4792480), (5, 3833984), (7, 2738560), (8, 2396240), (10, 1916992), (11, 1742720), (14, 1369280), (16, 1198120), (20, 958496), (22, 871360), (28, 684640), (32, 599060), (35, 547712), (40, 479248), (44, 435680), (55, 348544), (56, 342320), (64, 299530), (70, 273856), (77, 248960), (80, 239624), (88, 217840), (110, 174272), (112, 171160), (128, 149765), (140, 136928), (154, 124480), (160, 119812), (176, 108920), (220, 87136), (224, 85580), (280, 68464), (308, 62240), (320, 59906), (352, 54460), (385, 49792), (389, 49280), (440, 43568), (448, 42790), (560, 34232), (616, 31120), (640, 29953), (704, 27230), (770, 24896), (778, 24640), (880, 21784), (896, 21395), (1120, 17116), (1232, 15560), (1408, 13615), (1540, 12448), (1556, 12320), (1760, 10892), (1945, 9856), (2240, 8558), (2464, 7780), (2723, 7040), (3080, 6224), (3112, 6160), (3520, 5446), (3890, 4928), (4279, 4480)]