257376392

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{167}}^1$

素因数の和:295

約数の個数: 128

約数和(自身を含む): 626572800

約数和(自身を除く): 369196408

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 29, 52, 56, 58, 73, 91, 104, 116, 146, 167, 182, 203, 232, 292, 334, 364, 377, 406, 511, 584, 668, 728, 754, 812, 949, 1022, 1169, 1336, 1508, 1624, 1898, 2044, 2117, 2171, 2338, 2639, 3016, 3796, 4088, 4234, 4342, 4676, 4843, 5278, 6643, 7592, 8468, 8684, 9352, 9686, 10556, 12191, 13286, 14819, 15197, 16936, 17368, 19372, 21112, 24382, 26572, 27521, 29638, 30394, 33901, 38744, 48764, 53144, 55042, 59276, 60788, 62959, 67802, 85337, 97528, 110084, 118552, 121576, 125918, 135604, 158483, 170674, 192647, 220168, 251836, 271208, 316966, 341348, 353539, 385294, 440713, 503672, 633932, 682696, 707078, 770588, 881426, 1109381, 1267864, 1414156, 1541176, 1762852, 2218762, 2474773, 2828312, 3525704, 4437524, 4596007, 4949546, 8875048, 9192014, 9899092, 18384028, 19798184, 32172049, 36768056, 64344098, 128688196, 257376392]

約数ペア:

[(1, 257376392), (2, 128688196), (4, 64344098), (7, 36768056), (8, 32172049), (13, 19798184), (14, 18384028), (26, 9899092), (28, 9192014), (29, 8875048), (52, 4949546), (56, 4596007), (58, 4437524), (73, 3525704), (91, 2828312), (104, 2474773), (116, 2218762), (146, 1762852), (167, 1541176), (182, 1414156), (203, 1267864), (232, 1109381), (292, 881426), (334, 770588), (364, 707078), (377, 682696), (406, 633932), (511, 503672), (584, 440713), (668, 385294), (728, 353539), (754, 341348), (812, 316966), (949, 271208), (1022, 251836), (1169, 220168), (1336, 192647), (1508, 170674), (1624, 158483), (1898, 135604), (2044, 125918), (2117, 121576), (2171, 118552), (2338, 110084), (2639, 97528), (3016, 85337), (3796, 67802), (4088, 62959), (4234, 60788), (4342, 59276), (4676, 55042), (4843, 53144), (5278, 48764), (6643, 38744), (7592, 33901), (8468, 30394), (8684, 29638), (9352, 27521), (9686, 26572), (10556, 24382), (12191, 21112), (13286, 19372), (14819, 17368), (15197, 16936)]