289721890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{14071}}^1$

素因数の和:14178

約数の個数: 32

約数和(自身を含む): 547119360

約数和(自身を除く): 257397470

約数列:

[1, 2, 5, 10, 29, 58, 71, 142, 145, 290, 355, 710, 2059, 4118, 10295, 14071, 20590, 28142, 70355, 140710, 408059, 816118, 999041, 1998082, 2040295, 4080590, 4995205, 9990410, 28972189, 57944378, 144860945, 289721890]

約数ペア:

[(1, 289721890), (2, 144860945), (5, 57944378), (10, 28972189), (29, 9990410), (58, 4995205), (71, 4080590), (142, 2040295), (145, 1998082), (290, 999041), (355, 816118), (710, 408059), (2059, 140710), (4118, 70355), (10295, 28142), (14071, 20590)]