19869440

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1$

素因数の和:102

約数の個数: 108

約数和(自身を含む): 51398424

約数和(自身を除く): 31528984

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 43, 64, 76, 80, 86, 95, 128, 152, 160, 172, 190, 215, 256, 304, 320, 344, 361, 380, 430, 608, 640, 688, 722, 760, 817, 860, 1216, 1280, 1376, 1444, 1520, 1634, 1720, 1805, 2432, 2752, 2888, 3040, 3268, 3440, 3610, 4085, 4864, 5504, 5776, 6080, 6536, 6880, 7220, 8170, 11008, 11552, 12160, 13072, 13760, 14440, 15523, 16340, 23104, 24320, 26144, 27520, 28880, 31046, 32680, 46208, 52288, 55040, 57760, 62092, 65360, 77615, 92416, 104576, 115520, 124184, 130720, 155230, 209152, 231040, 248368, 261440, 310460, 462080, 496736, 522880, 620920, 993472, 1045760, 1241840, 1986944, 2483680, 3973888, 4967360, 9934720, 19869440]

約数ペア:

[(1, 19869440), (2, 9934720), (4, 4967360), (5, 3973888), (8, 2483680), (10, 1986944), (16, 1241840), (19, 1045760), (20, 993472), (32, 620920), (38, 522880), (40, 496736), (43, 462080), (64, 310460), (76, 261440), (80, 248368), (86, 231040), (95, 209152), (128, 155230), (152, 130720), (160, 124184), (172, 115520), (190, 104576), (215, 92416), (256, 77615), (304, 65360), (320, 62092), (344, 57760), (361, 55040), (380, 52288), (430, 46208), (608, 32680), (640, 31046), (688, 28880), (722, 27520), (760, 26144), (817, 24320), (860, 23104), (1216, 16340), (1280, 15523), (1376, 14440), (1444, 13760), (1520, 13072), (1634, 12160), (1720, 11552), (1805, 11008), (2432, 8170), (2752, 7220), (2888, 6880), (3040, 6536), (3268, 6080), (3440, 5776), (3610, 5504), (4085, 4864)]