55188880

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6329}}^1$

素因数の和:6451

約数の個数: 40

約数和(自身を含む): 129511800

約数和(自身を除く): 74322920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 6329, 8720, 12658, 25316, 31645, 50632, 63290, 101264, 126580, 253160, 506320, 689861, 1379722, 2759444, 3449305, 5518888, 6898610, 11037776, 13797220, 27594440, 55188880]

約数ペア:

[(1, 55188880), (2, 27594440), (4, 13797220), (5, 11037776), (8, 6898610), (10, 5518888), (16, 3449305), (20, 2759444), (40, 1379722), (80, 689861), (109, 506320), (218, 253160), (436, 126580), (545, 101264), (872, 63290), (1090, 50632), (1744, 31645), (2180, 25316), (4360, 12658), (6329, 8720)]