420706960

素因数分解:

$2^4\times 5^1\times {\mathrm{1913}}^1\times {\mathrm{2749}}^1$

素因数の和:4675

約数の個数: 40

約数和(自身を含む): 979011000

約数和(自身を除く): 558304040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1913, 2749, 3826, 5498, 7652, 9565, 10996, 13745, 15304, 19130, 21992, 27490, 30608, 38260, 43984, 54980, 76520, 109960, 153040, 219920, 5258837, 10517674, 21035348, 26294185, 42070696, 52588370, 84141392, 105176740, 210353480, 420706960]

約数ペア:

[(1, 420706960), (2, 210353480), (4, 105176740), (5, 84141392), (8, 52588370), (10, 42070696), (16, 26294185), (20, 21035348), (40, 10517674), (80, 5258837), (1913, 219920), (2749, 153040), (3826, 109960), (5498, 76520), (7652, 54980), (9565, 43984), (10996, 38260), (13745, 30608), (15304, 27490), (19130, 21992)]