56409680

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6469}}^1$

素因数の和:6591

約数の個数: 40

約数和(自身を含む): 132376200

約数和(自身を除く): 75966520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 6469, 8720, 12938, 25876, 32345, 51752, 64690, 103504, 129380, 258760, 517520, 705121, 1410242, 2820484, 3525605, 5640968, 7051210, 11281936, 14102420, 28204840, 56409680]

約数ペア:

[(1, 56409680), (2, 28204840), (4, 14102420), (5, 11281936), (8, 7051210), (10, 5640968), (16, 3525605), (20, 2820484), (40, 1410242), (80, 705121), (109, 517520), (218, 258760), (436, 129380), (545, 103504), (872, 64690), (1090, 51752), (1744, 32345), (2180, 25876), (4360, 12938), (6469, 8720)]