20052172

素因数分解:

$2^2\times 7^2\times {\mathrm{263}}^1\times {\mathrm{389}}^1$

素因数の和:670

約数の個数: 36

約数和(自身を含む): 41081040

約数和(自身を除く): 21028868

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 263, 389, 526, 778, 1052, 1556, 1841, 2723, 3682, 5446, 7364, 10892, 12887, 19061, 25774, 38122, 51548, 76244, 102307, 204614, 409228, 716149, 1432298, 2864596, 5013043, 10026086, 20052172]

約数ペア:

[(1, 20052172), (2, 10026086), (4, 5013043), (7, 2864596), (14, 1432298), (28, 716149), (49, 409228), (98, 204614), (196, 102307), (263, 76244), (389, 51548), (526, 38122), (778, 25774), (1052, 19061), (1556, 12887), (1841, 10892), (2723, 7364), (3682, 5446)]