678574208

素因数分解:

$2^7\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:199

約数の個数: 128

約数和(自身を含む): 1553664000

約数和(自身を除く): 875089792

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 127, 128, 152, 169, 208, 247, 254, 304, 338, 416, 494, 508, 608, 676, 832, 988, 1016, 1216, 1352, 1651, 1664, 1976, 2032, 2197, 2413, 2432, 2704, 3211, 3302, 3952, 4064, 4394, 4826, 5408, 6422, 6604, 7904, 8128, 8788, 9652, 10816, 12844, 13208, 15808, 16256, 17576, 19304, 21463, 21632, 25688, 26416, 31369, 31616, 35152, 38608, 41743, 42926, 51376, 52832, 62738, 70304, 77216, 83486, 85852, 102752, 105664, 125476, 140608, 154432, 166972, 171704, 205504, 211328, 250952, 279019, 281216, 308864, 333944, 343408, 407797, 411008, 501904, 558038, 667888, 686816, 815594, 1003808, 1116076, 1335776, 1373632, 1631188, 2007616, 2232152, 2671552, 2747264, 3262376, 4015232, 4464304, 5301361, 5343104, 6524752, 8928608, 10602722, 13049504, 17857216, 21205444, 26099008, 35714432, 42410888, 52198016, 84821776, 169643552, 339287104, 678574208]

約数ペア:

[(1, 678574208), (2, 339287104), (4, 169643552), (8, 84821776), (13, 52198016), (16, 42410888), (19, 35714432), (26, 26099008), (32, 21205444), (38, 17857216), (52, 13049504), (64, 10602722), (76, 8928608), (104, 6524752), (127, 5343104), (128, 5301361), (152, 4464304), (169, 4015232), (208, 3262376), (247, 2747264), (254, 2671552), (304, 2232152), (338, 2007616), (416, 1631188), (494, 1373632), (508, 1335776), (608, 1116076), (676, 1003808), (832, 815594), (988, 686816), (1016, 667888), (1216, 558038), (1352, 501904), (1651, 411008), (1664, 407797), (1976, 343408), (2032, 333944), (2197, 308864), (2413, 281216), (2432, 279019), (2704, 250952), (3211, 211328), (3302, 205504), (3952, 171704), (4064, 166972), (4394, 154432), (4826, 140608), (5408, 125476), (6422, 105664), (6604, 102752), (7904, 85852), (8128, 83486), (8788, 77216), (9652, 70304), (10816, 62738), (12844, 52832), (13208, 51376), (15808, 42926), (16256, 41743), (17576, 38608), (19304, 35152), (21463, 31616), (21632, 31369), (25688, 26416)]