7881400

素因数分解:

$2^3\times 5^2\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 18514440

約数和(自身を除く): 10633040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 157, 200, 251, 314, 502, 628, 785, 1004, 1255, 1256, 1570, 2008, 2510, 3140, 3925, 5020, 6275, 6280, 7850, 10040, 12550, 15700, 25100, 31400, 39407, 50200, 78814, 157628, 197035, 315256, 394070, 788140, 985175, 1576280, 1970350, 3940700, 7881400]

約数ペア:

[(1, 7881400), (2, 3940700), (4, 1970350), (5, 1576280), (8, 985175), (10, 788140), (20, 394070), (25, 315256), (40, 197035), (50, 157628), (100, 78814), (157, 50200), (200, 39407), (251, 31400), (314, 25100), (502, 15700), (628, 12550), (785, 10040), (1004, 7850), (1255, 6280), (1256, 6275), (1570, 5020), (2008, 3925), (2510, 3140)]