2001005

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:316

約数の個数: 16

約数和(自身を含む): 2528064

約数和(自身を除く): 527059

約数列:

[1, 5, 41, 43, 205, 215, 227, 1135, 1763, 8815, 9307, 9761, 46535, 48805, 400201, 2001005]

約数ペア:

[(1, 2001005), (5, 400201), (41, 48805), (43, 46535), (205, 9761), (215, 9307), (227, 8815), (1135, 1763)]