61143920

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1741}}^1$

素因数の和:2193

約数の個数: 40

約数和(自身を含む): 142565280

約数和(自身を除く): 81421360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 878, 1741, 1756, 2195, 3482, 3512, 4390, 6964, 7024, 8705, 8780, 13928, 17410, 17560, 27856, 34820, 35120, 69640, 139280, 764299, 1528598, 3057196, 3821495, 6114392, 7642990, 12228784, 15285980, 30571960, 61143920]

約数ペア:

[(1, 61143920), (2, 30571960), (4, 15285980), (5, 12228784), (8, 7642990), (10, 6114392), (16, 3821495), (20, 3057196), (40, 1528598), (80, 764299), (439, 139280), (878, 69640), (1741, 35120), (1756, 34820), (2195, 27856), (3482, 17560), (3512, 17410), (4390, 13928), (6964, 8780), (7024, 8705)]