257639256

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{709}}^1$

素因数の和:838

約数の個数: 144

約数和(自身を含む): 820731600

約数和(自身を除く): 563092344

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 103, 126, 147, 168, 196, 206, 252, 294, 309, 392, 412, 441, 504, 588, 618, 709, 721, 824, 882, 927, 1176, 1236, 1418, 1442, 1764, 1854, 2127, 2163, 2472, 2836, 2884, 3528, 3708, 4254, 4326, 4963, 5047, 5672, 5768, 6381, 6489, 7416, 8508, 8652, 9926, 10094, 12762, 12978, 14889, 15141, 17016, 17304, 19852, 20188, 25524, 25956, 29778, 30282, 34741, 39704, 40376, 44667, 45423, 51048, 51912, 59556, 60564, 69482, 73027, 89334, 90846, 104223, 119112, 121128, 138964, 146054, 178668, 181692, 208446, 219081, 277928, 292108, 312669, 357336, 363384, 416892, 438162, 511189, 584216, 625338, 657243, 833784, 876324, 1022378, 1250676, 1314486, 1533567, 1752648, 2044756, 2501352, 2628972, 3067134, 3578323, 4089512, 4600701, 5257944, 6134268, 7156646, 9201402, 10734969, 12268536, 14313292, 18402804, 21469938, 28626584, 32204907, 36805608, 42939876, 64409814, 85879752, 128819628, 257639256]

約数ペア:

[(1, 257639256), (2, 128819628), (3, 85879752), (4, 64409814), (6, 42939876), (7, 36805608), (8, 32204907), (9, 28626584), (12, 21469938), (14, 18402804), (18, 14313292), (21, 12268536), (24, 10734969), (28, 9201402), (36, 7156646), (42, 6134268), (49, 5257944), (56, 4600701), (63, 4089512), (72, 3578323), (84, 3067134), (98, 2628972), (103, 2501352), (126, 2044756), (147, 1752648), (168, 1533567), (196, 1314486), (206, 1250676), (252, 1022378), (294, 876324), (309, 833784), (392, 657243), (412, 625338), (441, 584216), (504, 511189), (588, 438162), (618, 416892), (709, 363384), (721, 357336), (824, 312669), (882, 292108), (927, 277928), (1176, 219081), (1236, 208446), (1418, 181692), (1442, 178668), (1764, 146054), (1854, 138964), (2127, 121128), (2163, 119112), (2472, 104223), (2836, 90846), (2884, 89334), (3528, 73027), (3708, 69482), (4254, 60564), (4326, 59556), (4963, 51912), (5047, 51048), (5672, 45423), (5768, 44667), (6381, 40376), (6489, 39704), (7416, 34741), (8508, 30282), (8652, 29778), (9926, 25956), (10094, 25524), (12762, 20188), (12978, 19852), (14889, 17304), (15141, 17016)]