81496680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1361}}^1$

素因数の和:1874

約数の個数: 64

約数和(自身を含む): 245160000

約数和(自身を除く): 163663320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 499, 998, 1361, 1497, 1996, 2495, 2722, 2994, 3992, 4083, 4990, 5444, 5988, 6805, 7485, 8166, 9980, 10888, 11976, 13610, 14970, 16332, 19960, 20415, 27220, 29940, 32664, 40830, 54440, 59880, 81660, 163320, 679139, 1358278, 2037417, 2716556, 3395695, 4074834, 5433112, 6791390, 8149668, 10187085, 13582780, 16299336, 20374170, 27165560, 40748340, 81496680]

約数ペア:

[(1, 81496680), (2, 40748340), (3, 27165560), (4, 20374170), (5, 16299336), (6, 13582780), (8, 10187085), (10, 8149668), (12, 6791390), (15, 5433112), (20, 4074834), (24, 3395695), (30, 2716556), (40, 2037417), (60, 1358278), (120, 679139), (499, 163320), (998, 81660), (1361, 59880), (1497, 54440), (1996, 40830), (2495, 32664), (2722, 29940), (2994, 27220), (3992, 20415), (4083, 19960), (4990, 16332), (5444, 14970), (5988, 13610), (6805, 11976), (7485, 10888), (8166, 9980)]