420220020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{636697}}^1$

素因数の和:636720

約数の個数: 48

約数和(自身を含む): 1283583168

約数和(自身を除く): 863363148

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 636697, 1273394, 1910091, 2546788, 3183485, 3820182, 6366970, 7003667, 7640364, 9550455, 12733940, 14007334, 19100910, 21011001, 28014668, 35018335, 38201820, 42022002, 70036670, 84044004, 105055005, 140073340, 210110010, 420220020]

約数ペア:

[(1, 420220020), (2, 210110010), (3, 140073340), (4, 105055005), (5, 84044004), (6, 70036670), (10, 42022002), (11, 38201820), (12, 35018335), (15, 28014668), (20, 21011001), (22, 19100910), (30, 14007334), (33, 12733940), (44, 9550455), (55, 7640364), (60, 7003667), (66, 6366970), (110, 3820182), (132, 3183485), (165, 2546788), (220, 1910091), (330, 1273394), (660, 636697)]