289315715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{2143}}^1$

素因数の和:2259

約数の個数: 32

約数和(自身を含む): 391888896

約数和(自身を除く): 102573181

約数列:

[1, 5, 13, 31, 65, 67, 155, 335, 403, 871, 2015, 2077, 2143, 4355, 10385, 10715, 27001, 27859, 66433, 135005, 139295, 143581, 332165, 717905, 863629, 1866553, 4318145, 4451011, 9332765, 22255055, 57863143, 289315715]

約数ペア:

[(1, 289315715), (5, 57863143), (13, 22255055), (31, 9332765), (65, 4451011), (67, 4318145), (155, 1866553), (335, 863629), (403, 717905), (871, 332165), (2015, 143581), (2077, 139295), (2143, 135005), (4355, 66433), (10385, 27859), (10715, 27001)]