218891340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{2437}}^1$

素因数の和:2951

約数の個数: 72

約数和(自身を含む): 665574000

約数和(自身を除く): 446682660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 499, 998, 1497, 1996, 2437, 2495, 2994, 4491, 4874, 4990, 5988, 7311, 7485, 8982, 9748, 9980, 12185, 14622, 14970, 17964, 21933, 22455, 24370, 29244, 29940, 36555, 43866, 44910, 48740, 73110, 87732, 89820, 109665, 146220, 219330, 438660, 1216063, 2432126, 3648189, 4864252, 6080315, 7296378, 10944567, 12160630, 14592756, 18240945, 21889134, 24321260, 36481890, 43778268, 54722835, 72963780, 109445670, 218891340]

約数ペア:

[(1, 218891340), (2, 109445670), (3, 72963780), (4, 54722835), (5, 43778268), (6, 36481890), (9, 24321260), (10, 21889134), (12, 18240945), (15, 14592756), (18, 12160630), (20, 10944567), (30, 7296378), (36, 6080315), (45, 4864252), (60, 3648189), (90, 2432126), (180, 1216063), (499, 438660), (998, 219330), (1497, 146220), (1996, 109665), (2437, 89820), (2495, 87732), (2994, 73110), (4491, 48740), (4874, 44910), (4990, 43866), (5988, 36555), (7311, 29940), (7485, 29244), (8982, 24370), (9748, 22455), (9980, 21933), (12185, 17964), (14622, 14970)]