81079640

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{27767}}^1$

素因数の和:27851

約数の個数: 32

約数和(自身を含む): 184934880

約数和(自身を除く): 103855240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 27767, 55534, 111068, 138835, 222136, 277670, 555340, 1110680, 2026991, 4053982, 8107964, 10134955, 16215928, 20269910, 40539820, 81079640]

約数ペア:

[(1, 81079640), (2, 40539820), (4, 20269910), (5, 16215928), (8, 10134955), (10, 8107964), (20, 4053982), (40, 2026991), (73, 1110680), (146, 555340), (292, 277670), (365, 222136), (584, 138835), (730, 111068), (1460, 55534), (2920, 27767)]