257437128

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:311

約数の個数: 128

約数和(自身を含む): 716083200

約数和(自身を除く): 458646072

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 73, 78, 89, 104, 127, 146, 156, 178, 219, 254, 267, 292, 312, 356, 381, 438, 508, 534, 584, 712, 762, 876, 949, 1016, 1068, 1157, 1524, 1651, 1752, 1898, 2136, 2314, 2847, 3048, 3302, 3471, 3796, 4628, 4953, 5694, 6497, 6604, 6942, 7592, 9256, 9271, 9906, 11303, 11388, 12994, 13208, 13884, 18542, 19491, 19812, 22606, 22776, 25988, 27768, 27813, 33909, 37084, 38982, 39624, 45212, 51976, 55626, 67818, 74168, 77964, 84461, 90424, 111252, 120523, 135636, 146939, 155928, 168922, 222504, 241046, 253383, 271272, 293878, 337844, 361569, 440817, 482092, 506766, 587756, 675688, 723138, 825119, 881634, 964184, 1013532, 1175512, 1446276, 1650238, 1763268, 2027064, 2475357, 2892552, 3300476, 3526536, 4950714, 6600952, 9901428, 10726547, 19802856, 21453094, 32179641, 42906188, 64359282, 85812376, 128718564, 257437128]

約数ペア:

[(1, 257437128), (2, 128718564), (3, 85812376), (4, 64359282), (6, 42906188), (8, 32179641), (12, 21453094), (13, 19802856), (24, 10726547), (26, 9901428), (39, 6600952), (52, 4950714), (73, 3526536), (78, 3300476), (89, 2892552), (104, 2475357), (127, 2027064), (146, 1763268), (156, 1650238), (178, 1446276), (219, 1175512), (254, 1013532), (267, 964184), (292, 881634), (312, 825119), (356, 723138), (381, 675688), (438, 587756), (508, 506766), (534, 482092), (584, 440817), (712, 361569), (762, 337844), (876, 293878), (949, 271272), (1016, 253383), (1068, 241046), (1157, 222504), (1524, 168922), (1651, 155928), (1752, 146939), (1898, 135636), (2136, 120523), (2314, 111252), (2847, 90424), (3048, 84461), (3302, 77964), (3471, 74168), (3796, 67818), (4628, 55626), (4953, 51976), (5694, 45212), (6497, 39624), (6604, 38982), (6942, 37084), (7592, 33909), (9256, 27813), (9271, 27768), (9906, 25988), (11303, 22776), (11388, 22606), (12994, 19812), (13208, 19491), (13884, 18542)]