57131720

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{10903}}^1$

素因数の和:11045

約数の個数: 32

約数和(自身を含む): 129539520

約数和(自身を除く): 72407800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 10903, 21806, 43612, 54515, 87224, 109030, 218060, 436120, 1428293, 2856586, 5713172, 7141465, 11426344, 14282930, 28565860, 57131720]

約数ペア:

[(1, 57131720), (2, 28565860), (4, 14282930), (5, 11426344), (8, 7141465), (10, 5713172), (20, 2856586), (40, 1428293), (131, 436120), (262, 218060), (524, 109030), (655, 87224), (1048, 54515), (1310, 43612), (2620, 21806), (5240, 10903)]