413800840

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{40253}}^1$

素因数の和:40521

約数の個数: 32

約数和(自身を含む): 934697880

約数和(自身を除く): 520897040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 40253, 80506, 161012, 201265, 322024, 402530, 805060, 1610120, 10345021, 20690042, 41380084, 51725105, 82760168, 103450210, 206900420, 413800840]

約数ペア:

[(1, 413800840), (2, 206900420), (4, 103450210), (5, 82760168), (8, 51725105), (10, 41380084), (20, 20690042), (40, 10345021), (257, 1610120), (514, 805060), (1028, 402530), (1285, 322024), (2056, 201265), (2570, 161012), (5140, 80506), (10280, 40253)]