20800173632

素因数分解:

$2^6\times 7^1\times {\mathrm{71}}^1\times {\mathrm{653929}}^1$

素因数の和:654019

約数の個数: 56

約数和(自身を含む): 47836287360

約数和(自身を除く): 27036113728

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 142, 224, 284, 448, 497, 568, 994, 1136, 1988, 2272, 3976, 4544, 7952, 15904, 31808, 653929, 1307858, 2615716, 4577503, 5231432, 9155006, 10462864, 18310012, 20925728, 36620024, 41851456, 46428959, 73240048, 92857918, 146480096, 185715836, 292960192, 325002713, 371431672, 650005426, 742863344, 1300010852, 1485726688, 2600021704, 2971453376, 5200043408, 10400086816, 20800173632]

約数ペア:

[(1, 20800173632), (2, 10400086816), (4, 5200043408), (7, 2971453376), (8, 2600021704), (14, 1485726688), (16, 1300010852), (28, 742863344), (32, 650005426), (56, 371431672), (64, 325002713), (71, 292960192), (112, 185715836), (142, 146480096), (224, 92857918), (284, 73240048), (448, 46428959), (497, 41851456), (568, 36620024), (994, 20925728), (1136, 18310012), (1988, 10462864), (2272, 9155006), (3976, 5231432), (4544, 4577503), (7952, 2615716), (15904, 1307858), (31808, 653929)]