80755640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{288413}}^1$

素因数の和:288431

約数の個数: 32

約数和(自身を含む): 207658080

約数和(自身を除く): 126902440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 288413, 576826, 1153652, 1442065, 2018891, 2307304, 2884130, 4037782, 5768260, 8075564, 10094455, 11536520, 16151128, 20188910, 40377820, 80755640]

約数ペア:

[(1, 80755640), (2, 40377820), (4, 20188910), (5, 16151128), (7, 11536520), (8, 10094455), (10, 8075564), (14, 5768260), (20, 4037782), (28, 2884130), (35, 2307304), (40, 2018891), (56, 1442065), (70, 1153652), (140, 576826), (280, 288413)]