7272020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 17633280

約数和(自身を除く): 10361260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 409, 508, 635, 818, 889, 1270, 1636, 1778, 2045, 2540, 2863, 3556, 4090, 4445, 5726, 8180, 8890, 11452, 14315, 17780, 28630, 51943, 57260, 103886, 207772, 259715, 363601, 519430, 727202, 1038860, 1454404, 1818005, 3636010, 7272020]

約数ペア:

[(1, 7272020), (2, 3636010), (4, 1818005), (5, 1454404), (7, 1038860), (10, 727202), (14, 519430), (20, 363601), (28, 259715), (35, 207772), (70, 103886), (127, 57260), (140, 51943), (254, 28630), (409, 17780), (508, 14315), (635, 11452), (818, 8890), (889, 8180), (1270, 5726), (1636, 4445), (1778, 4090), (2045, 3556), (2540, 2863)]