89725640

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{10631}}^1$

素因数の和:10853

約数の個数: 32

約数和(自身を含む): 202858560

約数和(自身を除く): 113132920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 10631, 21262, 42524, 53155, 85048, 106310, 212620, 425240, 2243141, 4486282, 8972564, 11215705, 17945128, 22431410, 44862820, 89725640]

約数ペア:

[(1, 89725640), (2, 44862820), (4, 22431410), (5, 17945128), (8, 11215705), (10, 8972564), (20, 4486282), (40, 2243141), (211, 425240), (422, 212620), (844, 106310), (1055, 85048), (1688, 53155), (2110, 42524), (4220, 21262), (8440, 10631)]