393855488

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1259}}^1$

素因数の和:1337

約数の個数: 80

約数和(自身を含む): 866194560

約数和(自身を除く): 472339072

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 47, 52, 64, 94, 104, 128, 188, 208, 256, 376, 416, 512, 611, 752, 832, 1222, 1259, 1504, 1664, 2444, 2518, 3008, 3328, 4888, 5036, 6016, 6656, 9776, 10072, 12032, 16367, 19552, 20144, 24064, 32734, 39104, 40288, 59173, 65468, 78208, 80576, 118346, 130936, 156416, 161152, 236692, 261872, 312832, 322304, 473384, 523744, 644608, 769249, 946768, 1047488, 1538498, 1893536, 2094976, 3076996, 3787072, 4189952, 6153992, 7574144, 8379904, 12307984, 15148288, 24615968, 30296576, 49231936, 98463872, 196927744, 393855488]

約数ペア:

[(1, 393855488), (2, 196927744), (4, 98463872), (8, 49231936), (13, 30296576), (16, 24615968), (26, 15148288), (32, 12307984), (47, 8379904), (52, 7574144), (64, 6153992), (94, 4189952), (104, 3787072), (128, 3076996), (188, 2094976), (208, 1893536), (256, 1538498), (376, 1047488), (416, 946768), (512, 769249), (611, 644608), (752, 523744), (832, 473384), (1222, 322304), (1259, 312832), (1504, 261872), (1664, 236692), (2444, 161152), (2518, 156416), (3008, 130936), (3328, 118346), (4888, 80576), (5036, 78208), (6016, 65468), (6656, 59173), (9776, 40288), (10072, 39104), (12032, 32734), (16367, 24064), (19552, 20144)]