40685720

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{8009}}^1$

素因数の和:8147

約数の個数: 32

約数和(自身を含む): 92275200

約数和(自身を除く): 51589480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 8009, 16018, 32036, 40045, 64072, 80090, 160180, 320360, 1017143, 2034286, 4068572, 5085715, 8137144, 10171430, 20342860, 40685720]

約数ペア:

[(1, 40685720), (2, 20342860), (4, 10171430), (5, 8137144), (8, 5085715), (10, 4068572), (20, 2034286), (40, 1017143), (127, 320360), (254, 160180), (508, 80090), (635, 64072), (1016, 40045), (1270, 32036), (2540, 16018), (5080, 8009)]