81298920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{2411}}^1$

素因数の和:2706

約数の個数: 64

約数和(自身を含む): 244866240

約数和(自身を除く): 163567320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 281, 562, 843, 1124, 1405, 1686, 2248, 2411, 2810, 3372, 4215, 4822, 5620, 6744, 7233, 8430, 9644, 11240, 12055, 14466, 16860, 19288, 24110, 28932, 33720, 36165, 48220, 57864, 72330, 96440, 144660, 289320, 677491, 1354982, 2032473, 2709964, 3387455, 4064946, 5419928, 6774910, 8129892, 10162365, 13549820, 16259784, 20324730, 27099640, 40649460, 81298920]

約数ペア:

[(1, 81298920), (2, 40649460), (3, 27099640), (4, 20324730), (5, 16259784), (6, 13549820), (8, 10162365), (10, 8129892), (12, 6774910), (15, 5419928), (20, 4064946), (24, 3387455), (30, 2709964), (40, 2032473), (60, 1354982), (120, 677491), (281, 289320), (562, 144660), (843, 96440), (1124, 72330), (1405, 57864), (1686, 48220), (2248, 36165), (2411, 33720), (2810, 28932), (3372, 24110), (4215, 19288), (4822, 16860), (5620, 14466), (6744, 12055), (7233, 11240), (8430, 9644)]