77784880

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3697}}^1$

素因数の和:3973

約数の個数: 40

約数和(自身を含む): 181586592

約数和(自身を除く): 103801712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 2104, 2630, 3697, 4208, 5260, 7394, 10520, 14788, 18485, 21040, 29576, 36970, 59152, 73940, 147880, 295760, 972311, 1944622, 3889244, 4861555, 7778488, 9723110, 15556976, 19446220, 38892440, 77784880]

約数ペア:

[(1, 77784880), (2, 38892440), (4, 19446220), (5, 15556976), (8, 9723110), (10, 7778488), (16, 4861555), (20, 3889244), (40, 1944622), (80, 972311), (263, 295760), (526, 147880), (1052, 73940), (1315, 59152), (2104, 36970), (2630, 29576), (3697, 21040), (4208, 18485), (5260, 14788), (7394, 10520)]