640555488

素因数分解:

$2^5\times 3^2\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:437

約数の個数: 144

約数和(自身を含む): 1866848256

約数和(自身を除く): 1226292768

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 83, 96, 127, 144, 166, 211, 249, 254, 288, 332, 381, 422, 498, 508, 633, 664, 747, 762, 844, 996, 1016, 1143, 1266, 1328, 1494, 1524, 1688, 1899, 1992, 2032, 2286, 2532, 2656, 2988, 3048, 3376, 3798, 3984, 4064, 4572, 5064, 5976, 6096, 6752, 7596, 7968, 9144, 10128, 10541, 11952, 12192, 15192, 17513, 18288, 20256, 21082, 23904, 26797, 30384, 31623, 35026, 36576, 42164, 52539, 53594, 60768, 63246, 70052, 80391, 84328, 94869, 105078, 107188, 126492, 140104, 157617, 160782, 168656, 189738, 210156, 214376, 241173, 252984, 280208, 315234, 321564, 337312, 379476, 420312, 428752, 482346, 505968, 560416, 630468, 643128, 758952, 840624, 857504, 964692, 1011936, 1260936, 1286256, 1517904, 1681248, 1929384, 2224151, 2521872, 2572512, 3035808, 3858768, 4448302, 5043744, 6672453, 7717536, 8896604, 13344906, 17793208, 20017359, 26689812, 35586416, 40034718, 53379624, 71172832, 80069436, 106759248, 160138872, 213518496, 320277744, 640555488]

約数ペア:

[(1, 640555488), (2, 320277744), (3, 213518496), (4, 160138872), (6, 106759248), (8, 80069436), (9, 71172832), (12, 53379624), (16, 40034718), (18, 35586416), (24, 26689812), (32, 20017359), (36, 17793208), (48, 13344906), (72, 8896604), (83, 7717536), (96, 6672453), (127, 5043744), (144, 4448302), (166, 3858768), (211, 3035808), (249, 2572512), (254, 2521872), (288, 2224151), (332, 1929384), (381, 1681248), (422, 1517904), (498, 1286256), (508, 1260936), (633, 1011936), (664, 964692), (747, 857504), (762, 840624), (844, 758952), (996, 643128), (1016, 630468), (1143, 560416), (1266, 505968), (1328, 482346), (1494, 428752), (1524, 420312), (1688, 379476), (1899, 337312), (1992, 321564), (2032, 315234), (2286, 280208), (2532, 252984), (2656, 241173), (2988, 214376), (3048, 210156), (3376, 189738), (3798, 168656), (3984, 160782), (4064, 157617), (4572, 140104), (5064, 126492), (5976, 107188), (6096, 105078), (6752, 94869), (7596, 84328), (7968, 80391), (9144, 70052), (10128, 63246), (10541, 60768), (11952, 53594), (12192, 52539), (15192, 42164), (17513, 36576), (18288, 35026), (20256, 31623), (21082, 30384), (23904, 26797)]