520001209

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{38351}}^1$

素因数の和:38520

約数の個数: 16

約数和(自身を含む): 644313600

約数和(自身を除く): 124312391

約数列:

[1, 7, 13, 91, 149, 1043, 1937, 13559, 38351, 268457, 498563, 3489941, 5714299, 40000093, 74285887, 520001209]

約数ペア:

[(1, 520001209), (7, 74285887), (13, 40000093), (91, 5714299), (149, 3489941), (1043, 498563), (1937, 268457), (13559, 38351)]