127718990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{260651}}^1$

素因数の和:260672

約数の個数: 24

約数和(自身を含む): 267428952

約数和(自身を除く): 139709962

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 260651, 521302, 1303255, 1824557, 2606510, 3649114, 9122785, 12771899, 18245570, 25543798, 63859495, 127718990]

約数ペア:

[(1, 127718990), (2, 63859495), (5, 25543798), (7, 18245570), (10, 12771899), (14, 9122785), (35, 3649114), (49, 2606510), (70, 1824557), (98, 1303255), (245, 521302), (490, 260651)]