9904345

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 13833216

約数和(自身を除く): 3928871

約数列:

[1, 5, 11, 31, 37, 55, 155, 157, 185, 341, 407, 785, 1147, 1705, 1727, 2035, 4867, 5735, 5809, 8635, 12617, 24335, 29045, 53537, 63085, 63899, 180079, 267685, 319495, 900395, 1980869, 9904345]

約数ペア:

[(1, 9904345), (5, 1980869), (11, 900395), (31, 319495), (37, 267685), (55, 180079), (155, 63899), (157, 63085), (185, 53537), (341, 29045), (407, 24335), (785, 12617), (1147, 8635), (1705, 5809), (1727, 5735), (2035, 4867)]