378460

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 806400

約数和(自身を除く): 427940

約数列:

[1, 2, 4, 5, 10, 20, 127, 149, 254, 298, 508, 596, 635, 745, 1270, 1490, 2540, 2980, 18923, 37846, 75692, 94615, 189230, 378460]

約数ペア:

[(1, 378460), (2, 189230), (4, 94615), (5, 75692), (10, 37846), (20, 18923), (127, 2980), (149, 2540), (254, 1490), (298, 1270), (508, 745), (596, 635)]