20145012020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{6949}}^1\times {\mathrm{20707}}^1$

素因数の和:27672

約数の個数: 48

約数和(自身を含む): 48357321600

約数和(自身を除く): 28212309580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 6949, 13898, 20707, 27796, 34745, 41414, 48643, 69490, 82828, 97286, 103535, 138980, 144949, 194572, 207070, 243215, 289898, 414140, 486430, 579796, 724745, 972860, 1449490, 2898980, 143892943, 287785886, 575571772, 719464715, 1007250601, 1438929430, 2014501202, 2877858860, 4029002404, 5036253005, 10072506010, 20145012020]

約数ペア:

[(1, 20145012020), (2, 10072506010), (4, 5036253005), (5, 4029002404), (7, 2877858860), (10, 2014501202), (14, 1438929430), (20, 1007250601), (28, 719464715), (35, 575571772), (70, 287785886), (140, 143892943), (6949, 2898980), (13898, 1449490), (20707, 972860), (27796, 724745), (34745, 579796), (41414, 486430), (48643, 414140), (69490, 289898), (82828, 243215), (97286, 207070), (103535, 194572), (138980, 144949)]