20323864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 43908480

約数和(自身を除く): 23584616

約数列:

[1, 2, 4, 8, 11, 22, 41, 43, 44, 82, 86, 88, 131, 164, 172, 262, 328, 344, 451, 473, 524, 902, 946, 1048, 1441, 1763, 1804, 1892, 2882, 3526, 3608, 3784, 5371, 5633, 5764, 7052, 10742, 11266, 11528, 14104, 19393, 21484, 22532, 38786, 42968, 45064, 59081, 61963, 77572, 118162, 123926, 155144, 230953, 236324, 247852, 461906, 472648, 495704, 923812, 1847624, 2540483, 5080966, 10161932, 20323864]

約数ペア:

[(1, 20323864), (2, 10161932), (4, 5080966), (8, 2540483), (11, 1847624), (22, 923812), (41, 495704), (43, 472648), (44, 461906), (82, 247852), (86, 236324), (88, 230953), (131, 155144), (164, 123926), (172, 118162), (262, 77572), (328, 61963), (344, 59081), (451, 45064), (473, 42968), (524, 38786), (902, 22532), (946, 21484), (1048, 19393), (1441, 14104), (1763, 11528), (1804, 11266), (1892, 10742), (2882, 7052), (3526, 5764), (3608, 5633), (3784, 5371)]