129987520

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31247}}^1$

素因数の和:31277

約数の個数: 56

約数和(自身を含む): 333353664

約数和(自身を除く): 203366144

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 31247, 62494, 124988, 156235, 249976, 312470, 406211, 499952, 624940, 812422, 999904, 1249880, 1624844, 1999808, 2031055, 2499760, 3249688, 4062110, 4999520, 6499376, 8124220, 9999040, 12998752, 16248440, 25997504, 32496880, 64993760, 129987520]

約数ペア:

[(1, 129987520), (2, 64993760), (4, 32496880), (5, 25997504), (8, 16248440), (10, 12998752), (13, 9999040), (16, 8124220), (20, 6499376), (26, 4999520), (32, 4062110), (40, 3249688), (52, 2499760), (64, 2031055), (65, 1999808), (80, 1624844), (104, 1249880), (130, 999904), (160, 812422), (208, 624940), (260, 499952), (320, 406211), (416, 312470), (520, 249976), (832, 156235), (1040, 124988), (2080, 62494), (4160, 31247)]