81988472

素因数分解:

$2^3\times {\mathrm{137}}^1\times {\mathrm{239}}^1\times {\mathrm{313}}^1$

素因数の和:695

約数の個数: 32

約数和(自身を含む): 155995200

約数和(自身を除く): 74006728

約数列:

[1, 2, 4, 8, 137, 239, 274, 313, 478, 548, 626, 956, 1096, 1252, 1912, 2504, 32743, 42881, 65486, 74807, 85762, 130972, 149614, 171524, 261944, 299228, 343048, 598456, 10248559, 20497118, 40994236, 81988472]

約数ペア:

[(1, 81988472), (2, 40994236), (4, 20497118), (8, 10248559), (137, 598456), (239, 343048), (274, 299228), (313, 261944), (478, 171524), (548, 149614), (626, 130972), (956, 85762), (1096, 74807), (1252, 65486), (1912, 42881), (2504, 32743)]