139220240

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{40471}}^1$

素因数の和:40527

約数の個数: 40

約数和(自身を含む): 331222848

約数和(自身を除く): 192002608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 40471, 80942, 161884, 202355, 323768, 404710, 647536, 809420, 1618840, 1740253, 3237680, 3480506, 6961012, 8701265, 13922024, 17402530, 27844048, 34805060, 69610120, 139220240]

約数ペア:

[(1, 139220240), (2, 69610120), (4, 34805060), (5, 27844048), (8, 17402530), (10, 13922024), (16, 8701265), (20, 6961012), (40, 3480506), (43, 3237680), (80, 1740253), (86, 1618840), (172, 809420), (215, 647536), (344, 404710), (430, 323768), (688, 202355), (860, 161884), (1720, 80942), (3440, 40471)]