7805420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{439}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 18923520

約数和(自身を除く): 11118100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 439, 508, 635, 878, 889, 1270, 1756, 1778, 2195, 2540, 3073, 3556, 4390, 4445, 6146, 8780, 8890, 12292, 15365, 17780, 30730, 55753, 61460, 111506, 223012, 278765, 390271, 557530, 780542, 1115060, 1561084, 1951355, 3902710, 7805420]

約数ペア:

[(1, 7805420), (2, 3902710), (4, 1951355), (5, 1561084), (7, 1115060), (10, 780542), (14, 557530), (20, 390271), (28, 278765), (35, 223012), (70, 111506), (127, 61460), (140, 55753), (254, 30730), (439, 17780), (508, 15365), (635, 12292), (878, 8890), (889, 8780), (1270, 6146), (1756, 4445), (1778, 4390), (2195, 3556), (2540, 3073)]