257587218

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{19}}^2\times {\mathrm{809}}^1$

素因数の和:869

約数の個数: 108

約数和(自身を含む): 686040030

約数和(自身を除く): 428452812

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 49, 57, 63, 98, 114, 126, 133, 147, 171, 266, 294, 342, 361, 399, 441, 722, 798, 809, 882, 931, 1083, 1197, 1618, 1862, 2166, 2394, 2427, 2527, 2793, 3249, 4854, 5054, 5586, 5663, 6498, 7281, 7581, 8379, 11326, 14562, 15162, 15371, 16758, 16989, 17689, 22743, 30742, 33978, 35378, 39641, 45486, 46113, 50967, 53067, 79282, 92226, 101934, 106134, 107597, 118923, 138339, 159201, 215194, 237846, 276678, 292049, 318402, 322791, 356769, 584098, 645582, 713538, 753179, 876147, 968373, 1506358, 1752294, 1936746, 2044343, 2259537, 2628441, 4088686, 4519074, 5256882, 6133029, 6778611, 12266058, 13557222, 14310401, 18399087, 28620802, 36798174, 42931203, 85862406, 128793609, 257587218]

約数ペア:

[(1, 257587218), (2, 128793609), (3, 85862406), (6, 42931203), (7, 36798174), (9, 28620802), (14, 18399087), (18, 14310401), (19, 13557222), (21, 12266058), (38, 6778611), (42, 6133029), (49, 5256882), (57, 4519074), (63, 4088686), (98, 2628441), (114, 2259537), (126, 2044343), (133, 1936746), (147, 1752294), (171, 1506358), (266, 968373), (294, 876147), (342, 753179), (361, 713538), (399, 645582), (441, 584098), (722, 356769), (798, 322791), (809, 318402), (882, 292049), (931, 276678), (1083, 237846), (1197, 215194), (1618, 159201), (1862, 138339), (2166, 118923), (2394, 107597), (2427, 106134), (2527, 101934), (2793, 92226), (3249, 79282), (4854, 53067), (5054, 50967), (5586, 46113), (5663, 45486), (6498, 39641), (7281, 35378), (7581, 33978), (8379, 30742), (11326, 22743), (14562, 17689), (15162, 16989), (15371, 16758)]