56440880

素因数分解:

$2^4\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1021}}^1$

素因数の和:1725

約数の個数: 40

約数和(自身を含む): 131543664

約数和(自身を除く): 75102784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 691, 1021, 1382, 2042, 2764, 3455, 4084, 5105, 5528, 6910, 8168, 10210, 11056, 13820, 16336, 20420, 27640, 40840, 55280, 81680, 705511, 1411022, 2822044, 3527555, 5644088, 7055110, 11288176, 14110220, 28220440, 56440880]

約数ペア:

[(1, 56440880), (2, 28220440), (4, 14110220), (5, 11288176), (8, 7055110), (10, 5644088), (16, 3527555), (20, 2822044), (40, 1411022), (80, 705511), (691, 81680), (1021, 55280), (1382, 40840), (2042, 27640), (2764, 20420), (3455, 16336), (4084, 13820), (5105, 11056), (5528, 10210), (6910, 8168)]