289095260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{3823}}^1$

素因数の和:4050

約数の個数: 48

約数和(自身を含む): 642432000

約数和(自身を除く): 353336740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 380, 398, 796, 995, 1990, 3781, 3823, 3980, 7562, 7646, 15124, 15292, 18905, 19115, 37810, 38230, 72637, 75620, 76460, 145274, 290548, 363185, 726370, 760777, 1452740, 1521554, 3043108, 3803885, 7607770, 14454763, 15215540, 28909526, 57819052, 72273815, 144547630, 289095260]

約数ペア:

[(1, 289095260), (2, 144547630), (4, 72273815), (5, 57819052), (10, 28909526), (19, 15215540), (20, 14454763), (38, 7607770), (76, 3803885), (95, 3043108), (190, 1521554), (199, 1452740), (380, 760777), (398, 726370), (796, 363185), (995, 290548), (1990, 145274), (3781, 76460), (3823, 75620), (3980, 72637), (7562, 38230), (7646, 37810), (15124, 19115), (15292, 18905)]