71521805

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{27143}}^1$

素因数の和:27196

約数の個数: 16

約数和(自身を含む): 93809664

約数和(自身を除く): 22287859

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 27143, 135715, 461431, 841433, 2307155, 4207165, 14304361, 71521805]

約数ペア:

[(1, 71521805), (5, 14304361), (17, 4207165), (31, 2307155), (85, 841433), (155, 461431), (527, 135715), (2635, 27143)]