266665

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:432

約数の個数: 16

約数和(自身を含む): 385920

約数和(自身を除く): 119255

約数列:

[1, 5, 7, 19, 35, 95, 133, 401, 665, 2005, 2807, 7619, 14035, 38095, 53333, 266665]

約数ペア:

[(1, 266665), (5, 53333), (7, 38095), (19, 14035), (35, 7619), (95, 2807), (133, 2005), (401, 665)]