19449760

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:326

約数の個数: 96

約数和(自身を含む): 51492672

約数和(自身を除く): 32042912

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 43, 44, 55, 80, 86, 88, 110, 160, 172, 176, 215, 220, 257, 344, 352, 430, 440, 473, 514, 688, 860, 880, 946, 1028, 1285, 1376, 1720, 1760, 1892, 2056, 2365, 2570, 2827, 3440, 3784, 4112, 4730, 5140, 5654, 6880, 7568, 8224, 9460, 10280, 11051, 11308, 14135, 15136, 18920, 20560, 22102, 22616, 28270, 37840, 41120, 44204, 45232, 55255, 56540, 75680, 88408, 90464, 110510, 113080, 121561, 176816, 221020, 226160, 243122, 353632, 442040, 452320, 486244, 607805, 884080, 972488, 1215610, 1768160, 1944976, 2431220, 3889952, 4862440, 9724880, 19449760]

約数ペア:

[(1, 19449760), (2, 9724880), (4, 4862440), (5, 3889952), (8, 2431220), (10, 1944976), (11, 1768160), (16, 1215610), (20, 972488), (22, 884080), (32, 607805), (40, 486244), (43, 452320), (44, 442040), (55, 353632), (80, 243122), (86, 226160), (88, 221020), (110, 176816), (160, 121561), (172, 113080), (176, 110510), (215, 90464), (220, 88408), (257, 75680), (344, 56540), (352, 55255), (430, 45232), (440, 44204), (473, 41120), (514, 37840), (688, 28270), (860, 22616), (880, 22102), (946, 20560), (1028, 18920), (1285, 15136), (1376, 14135), (1720, 11308), (1760, 11051), (1892, 10280), (2056, 9460), (2365, 8224), (2570, 7568), (2827, 6880), (3440, 5654), (3784, 5140), (4112, 4730)]