218175440

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{7951}}^1$

素因数の和:7985

約数の個数: 80

約数和(自身を含む): 591628800

約数和(自身を除く): 373453360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 3430, 3920, 5488, 6860, 7951, 13720, 15902, 27440, 31804, 39755, 55657, 63608, 79510, 111314, 127216, 159020, 222628, 278285, 318040, 389599, 445256, 556570, 636080, 779198, 890512, 1113140, 1558396, 1947995, 2226280, 2727193, 3116792, 3895990, 4452560, 5454386, 6233584, 7791980, 10908772, 13635965, 15583960, 21817544, 27271930, 31167920, 43635088, 54543860, 109087720, 218175440]

約数ペア:

[(1, 218175440), (2, 109087720), (4, 54543860), (5, 43635088), (7, 31167920), (8, 27271930), (10, 21817544), (14, 15583960), (16, 13635965), (20, 10908772), (28, 7791980), (35, 6233584), (40, 5454386), (49, 4452560), (56, 3895990), (70, 3116792), (80, 2727193), (98, 2226280), (112, 1947995), (140, 1558396), (196, 1113140), (245, 890512), (280, 779198), (343, 636080), (392, 556570), (490, 445256), (560, 389599), (686, 318040), (784, 278285), (980, 222628), (1372, 159020), (1715, 127216), (1960, 111314), (2744, 79510), (3430, 63608), (3920, 55657), (5488, 39755), (6860, 31804), (7951, 27440), (13720, 15902)]