20804932548

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1\times {\mathrm{557}}^1$

素因数の和:934

約数の個数: 144

約数和(自身を含む): 54514854576

約数和(自身を除く): 33709922028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 73, 122, 146, 183, 219, 233, 244, 292, 366, 438, 466, 549, 557, 657, 699, 732, 876, 932, 1098, 1114, 1314, 1398, 1671, 2097, 2196, 2228, 2628, 2796, 3342, 4194, 4453, 5013, 6684, 8388, 8906, 10026, 13359, 14213, 17009, 17812, 20052, 26718, 28426, 33977, 34018, 40077, 40661, 42639, 51027, 53436, 56852, 67954, 68036, 80154, 81322, 85278, 101931, 102054, 121983, 127917, 129781, 135908, 153081, 160308, 162644, 170556, 203862, 204108, 243966, 255834, 259562, 305793, 306162, 365949, 389343, 407724, 487932, 511668, 519124, 611586, 612324, 731898, 778686, 1037549, 1168029, 1223172, 1463796, 1557372, 2075098, 2336058, 2480321, 3112647, 4150196, 4672116, 4960642, 6225294, 7440963, 7916641, 9337941, 9474013, 9921284, 12450588, 14881926, 15833282, 18675882, 18948026, 22322889, 23749923, 28422039, 29763852, 31666564, 37351764, 37896052, 44645778, 47499846, 56844078, 71249769, 85266117, 89291556, 94999692, 113688156, 142499538, 170532234, 284999076, 341064468, 577914793, 1155829586, 1733744379, 2311659172, 3467488758, 5201233137, 6934977516, 10402466274, 20804932548]

約数ペア:

[(1, 20804932548), (2, 10402466274), (3, 6934977516), (4, 5201233137), (6, 3467488758), (9, 2311659172), (12, 1733744379), (18, 1155829586), (36, 577914793), (61, 341064468), (73, 284999076), (122, 170532234), (146, 142499538), (183, 113688156), (219, 94999692), (233, 89291556), (244, 85266117), (292, 71249769), (366, 56844078), (438, 47499846), (466, 44645778), (549, 37896052), (557, 37351764), (657, 31666564), (699, 29763852), (732, 28422039), (876, 23749923), (932, 22322889), (1098, 18948026), (1114, 18675882), (1314, 15833282), (1398, 14881926), (1671, 12450588), (2097, 9921284), (2196, 9474013), (2228, 9337941), (2628, 7916641), (2796, 7440963), (3342, 6225294), (4194, 4960642), (4453, 4672116), (5013, 4150196), (6684, 3112647), (8388, 2480321), (8906, 2336058), (10026, 2075098), (13359, 1557372), (14213, 1463796), (17009, 1223172), (17812, 1168029), (20052, 1037549), (26718, 778686), (28426, 731898), (33977, 612324), (34018, 611586), (40077, 519124), (40661, 511668), (42639, 487932), (51027, 407724), (53436, 389343), (56852, 365949), (67954, 306162), (68036, 305793), (80154, 259562), (81322, 255834), (85278, 243966), (101931, 204108), (102054, 203862), (121983, 170556), (127917, 162644), (129781, 160308), (135908, 153081)]