81336815

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 121396320

約数和(自身を除く): 40059505

約数列:

[1, 5, 7, 19, 35, 49, 95, 101, 133, 173, 245, 505, 665, 707, 865, 931, 1211, 1919, 3287, 3535, 4655, 4949, 6055, 8477, 9595, 13433, 16435, 17473, 23009, 24745, 42385, 67165, 87365, 94031, 115045, 122311, 161063, 331987, 470155, 611555, 805315, 856177, 1659935, 2323909, 4280885, 11619545, 16267363, 81336815]

約数ペア:

[(1, 81336815), (5, 16267363), (7, 11619545), (19, 4280885), (35, 2323909), (49, 1659935), (95, 856177), (101, 805315), (133, 611555), (173, 470155), (245, 331987), (505, 161063), (665, 122311), (707, 115045), (865, 94031), (931, 87365), (1211, 67165), (1919, 42385), (3287, 24745), (3535, 23009), (4655, 17473), (4949, 16435), (6055, 13433), (8477, 9595)]