71940520

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{5783}}^1$

素因数の和:6105

約数の個数: 32

約数和(自身を含む): 162414720

約数和(自身を除く): 90474200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 5783, 6220, 11566, 12440, 23132, 28915, 46264, 57830, 115660, 231320, 1798513, 3597026, 7194052, 8992565, 14388104, 17985130, 35970260, 71940520]

約数ペア:

[(1, 71940520), (2, 35970260), (4, 17985130), (5, 14388104), (8, 8992565), (10, 7194052), (20, 3597026), (40, 1798513), (311, 231320), (622, 115660), (1244, 57830), (1555, 46264), (2488, 28915), (3110, 23132), (5783, 12440), (6220, 11566)]