39263420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{991}}^1$

素因数の和:1290

約数の個数: 48

約数和(自身を含む): 94660608

約数和(自身を除く): 55397188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 283, 566, 991, 1132, 1415, 1981, 1982, 2830, 3962, 3964, 4955, 5660, 6937, 7924, 9905, 9910, 13874, 19810, 19820, 27748, 34685, 39620, 69370, 138740, 280453, 560906, 1121812, 1402265, 1963171, 2804530, 3926342, 5609060, 7852684, 9815855, 19631710, 39263420]

約数ペア:

[(1, 39263420), (2, 19631710), (4, 9815855), (5, 7852684), (7, 5609060), (10, 3926342), (14, 2804530), (20, 1963171), (28, 1402265), (35, 1121812), (70, 560906), (140, 280453), (283, 138740), (566, 69370), (991, 39620), (1132, 34685), (1415, 27748), (1981, 19820), (1982, 19810), (2830, 13874), (3962, 9910), (3964, 9905), (4955, 7924), (5660, 6937)]