278949860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1283}}^1\times {\mathrm{1553}}^1$

素因数の和:2852

約数の個数: 48

約数和(自身を含む): 670432896

約数和(自身を除く): 391483036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1283, 1553, 2566, 3106, 5132, 6212, 6415, 7765, 8981, 10871, 12830, 15530, 17962, 21742, 25660, 31060, 35924, 43484, 44905, 54355, 89810, 108710, 179620, 217420, 1992499, 3984998, 7969996, 9962495, 13947493, 19924990, 27894986, 39849980, 55789972, 69737465, 139474930, 278949860]

約数ペア:

[(1, 278949860), (2, 139474930), (4, 69737465), (5, 55789972), (7, 39849980), (10, 27894986), (14, 19924990), (20, 13947493), (28, 9962495), (35, 7969996), (70, 3984998), (140, 1992499), (1283, 217420), (1553, 179620), (2566, 108710), (3106, 89810), (5132, 54355), (6212, 44905), (6415, 43484), (7765, 35924), (8981, 31060), (10871, 25660), (12830, 21742), (15530, 17962)]