20782048

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^2\times {\mathrm{257}}^1$

素因数の和:312

約数の個数: 72

約数和(自身を含む): 49542192

約数和(自身を除く): 28760144

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 257, 266, 304, 361, 514, 532, 608, 722, 1028, 1064, 1444, 1799, 2056, 2128, 2527, 2888, 3598, 4112, 4256, 4883, 5054, 5776, 7196, 8224, 9766, 10108, 11552, 14392, 19532, 20216, 28784, 34181, 39064, 40432, 57568, 68362, 78128, 80864, 92777, 136724, 156256, 185554, 273448, 371108, 546896, 649439, 742216, 1093792, 1298878, 1484432, 2597756, 2968864, 5195512, 10391024, 20782048]

約数ペア:

[(1, 20782048), (2, 10391024), (4, 5195512), (7, 2968864), (8, 2597756), (14, 1484432), (16, 1298878), (19, 1093792), (28, 742216), (32, 649439), (38, 546896), (56, 371108), (76, 273448), (112, 185554), (133, 156256), (152, 136724), (224, 92777), (257, 80864), (266, 78128), (304, 68362), (361, 57568), (514, 40432), (532, 39064), (608, 34181), (722, 28784), (1028, 20216), (1064, 19532), (1444, 14392), (1799, 11552), (2056, 10108), (2128, 9766), (2527, 8224), (2888, 7196), (3598, 5776), (4112, 5054), (4256, 4883)]