161564320

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7951}}^1$

素因数の和:8093

約数の個数: 48

約数和(自身を含む): 384749568

約数和(自身を除く): 223185248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 7951, 10160, 15902, 20320, 31804, 39755, 63608, 79510, 127216, 159020, 254432, 318040, 636080, 1009777, 1272160, 2019554, 4039108, 5048885, 8078216, 10097770, 16156432, 20195540, 32312864, 40391080, 80782160, 161564320]

約数ペア:

[(1, 161564320), (2, 80782160), (4, 40391080), (5, 32312864), (8, 20195540), (10, 16156432), (16, 10097770), (20, 8078216), (32, 5048885), (40, 4039108), (80, 2019554), (127, 1272160), (160, 1009777), (254, 636080), (508, 318040), (635, 254432), (1016, 159020), (1270, 127216), (2032, 79510), (2540, 63608), (4064, 39755), (5080, 31804), (7951, 20320), (10160, 15902)]