256360356

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{193}}^1\times {\mathrm{251}}^1$

素因数の和:471

約数の個数: 144

約数和(自身を含む): 780252480

約数和(自身を除く): 523892124

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 193, 196, 251, 252, 294, 378, 386, 441, 502, 579, 588, 753, 756, 772, 882, 1004, 1158, 1323, 1351, 1506, 1737, 1757, 1764, 2259, 2316, 2646, 2702, 3012, 3474, 3514, 4053, 4518, 5211, 5271, 5292, 5404, 6777, 6948, 7028, 8106, 9036, 9457, 10422, 10542, 12159, 12299, 13554, 15813, 16212, 18914, 20844, 21084, 24318, 24598, 27108, 28371, 31626, 36477, 36897, 37828, 47439, 48443, 48636, 49196, 56742, 63252, 72954, 73794, 85113, 94878, 96886, 110691, 113484, 145329, 145908, 147588, 170226, 189756, 193772, 221382, 255339, 290658, 332073, 339101, 340452, 435987, 442764, 510678, 581316, 664146, 678202, 871974, 1017303, 1021356, 1307961, 1328292, 1356404, 1743948, 2034606, 2373707, 2615922, 3051909, 4069212, 4747414, 5231844, 6103818, 7121121, 9155727, 9494828, 12207636, 14242242, 18311454, 21363363, 28484484, 36622908, 42726726, 64090089, 85453452, 128180178, 256360356]

約数ペア:

[(1, 256360356), (2, 128180178), (3, 85453452), (4, 64090089), (6, 42726726), (7, 36622908), (9, 28484484), (12, 21363363), (14, 18311454), (18, 14242242), (21, 12207636), (27, 9494828), (28, 9155727), (36, 7121121), (42, 6103818), (49, 5231844), (54, 4747414), (63, 4069212), (84, 3051909), (98, 2615922), (108, 2373707), (126, 2034606), (147, 1743948), (189, 1356404), (193, 1328292), (196, 1307961), (251, 1021356), (252, 1017303), (294, 871974), (378, 678202), (386, 664146), (441, 581316), (502, 510678), (579, 442764), (588, 435987), (753, 340452), (756, 339101), (772, 332073), (882, 290658), (1004, 255339), (1158, 221382), (1323, 193772), (1351, 189756), (1506, 170226), (1737, 147588), (1757, 145908), (1764, 145329), (2259, 113484), (2316, 110691), (2646, 96886), (2702, 94878), (3012, 85113), (3474, 73794), (3514, 72954), (4053, 63252), (4518, 56742), (5211, 49196), (5271, 48636), (5292, 48443), (5404, 47439), (6777, 37828), (6948, 36897), (7028, 36477), (8106, 31626), (9036, 28371), (9457, 27108), (10422, 24598), (10542, 24318), (12159, 21084), (12299, 20844), (13554, 18914), (15813, 16212)]