647520752

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:498

約数の個数: 80

約数和(自身を含む): 1364778720

約数和(自身を除く): 717257968

約数列:

[1, 2, 4, 8, 16, 17, 34, 59, 68, 118, 136, 157, 236, 257, 272, 314, 472, 514, 628, 944, 1003, 1028, 1256, 2006, 2056, 2512, 2669, 4012, 4112, 4369, 5338, 8024, 8738, 9263, 10676, 15163, 16048, 17476, 18526, 21352, 30326, 34952, 37052, 40349, 42704, 60652, 69904, 74104, 80698, 121304, 148208, 157471, 161396, 242608, 257771, 314942, 322792, 515542, 629884, 645584, 685933, 1031084, 1259768, 1371866, 2062168, 2380591, 2519536, 2743732, 4124336, 4761182, 5487464, 9522364, 10974928, 19044728, 38089456, 40470047, 80940094, 161880188, 323760376, 647520752]

約数ペア:

[(1, 647520752), (2, 323760376), (4, 161880188), (8, 80940094), (16, 40470047), (17, 38089456), (34, 19044728), (59, 10974928), (68, 9522364), (118, 5487464), (136, 4761182), (157, 4124336), (236, 2743732), (257, 2519536), (272, 2380591), (314, 2062168), (472, 1371866), (514, 1259768), (628, 1031084), (944, 685933), (1003, 645584), (1028, 629884), (1256, 515542), (2006, 322792), (2056, 314942), (2512, 257771), (2669, 242608), (4012, 161396), (4112, 157471), (4369, 148208), (5338, 121304), (8024, 80698), (8738, 74104), (9263, 69904), (10676, 60652), (15163, 42704), (16048, 40349), (17476, 37052), (18526, 34952), (21352, 30326)]