287004575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1867}}^1$

素因数の和:1944

約数の個数: 48

約数和(自身を含む): 428055936

約数和(自身を除く): 141051361

約数列:

[1, 5, 11, 13, 25, 43, 55, 65, 143, 215, 275, 325, 473, 559, 715, 1075, 1867, 2365, 2795, 3575, 6149, 9335, 11825, 13975, 20537, 24271, 30745, 46675, 80281, 102685, 121355, 153725, 266981, 401405, 513425, 606775, 883091, 1043653, 1334905, 2007025, 4415455, 5218265, 6674525, 11480183, 22077275, 26091325, 57400915, 287004575]

約数ペア:

[(1, 287004575), (5, 57400915), (11, 26091325), (13, 22077275), (25, 11480183), (43, 6674525), (55, 5218265), (65, 4415455), (143, 2007025), (215, 1334905), (275, 1043653), (325, 883091), (473, 606775), (559, 513425), (715, 401405), (1075, 266981), (1867, 153725), (2365, 121355), (2795, 102685), (3575, 80281), (6149, 46675), (9335, 30745), (11825, 24271), (13975, 20537)]