39995720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14083}}^1$

素因数の和:14165

約数の個数: 32

約数和(自身を含む): 91264320

約数和(自身を除く): 51268600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 14083, 28166, 56332, 70415, 112664, 140830, 281660, 563320, 999893, 1999786, 3999572, 4999465, 7999144, 9998930, 19997860, 39995720]

約数ペア:

[(1, 39995720), (2, 19997860), (4, 9998930), (5, 7999144), (8, 4999465), (10, 3999572), (20, 1999786), (40, 999893), (71, 563320), (142, 281660), (284, 140830), (355, 112664), (568, 70415), (710, 56332), (1420, 28166), (2840, 14083)]