80899520

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19447}}^1$

素因数の和:19477

約数の個数: 56

約数和(自身を含む): 207471264

約数和(自身を除く): 126571744

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, 19447, 38894, 77788, 97235, 155576, 194470, 252811, 311152, 388940, 505622, 622304, 777880, 1011244, 1244608, 1264055, 1555760, 2022488, 2528110, 3111520, 4044976, 5056220, 6223040, 8089952, 10112440, 16179904, 20224880, 40449760, 80899520]

約数ペア:

[(1, 80899520), (2, 40449760), (4, 20224880), (5, 16179904), (8, 10112440), (10, 8089952), (13, 6223040), (16, 5056220), (20, 4044976), (26, 3111520), (32, 2528110), (40, 2022488), (52, 1555760), (64, 1264055), (65, 1244608), (80, 1011244), (104, 777880), (130, 622304), (160, 505622), (208, 388940), (260, 311152), (320, 252811), (416, 194470), (520, 155576), (832, 97235), (1040, 77788), (2080, 38894), (4160, 19447)]