641576480

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{29269}}^1$

素因数の和:29421

約数の個数: 48

約数和(自身を含む): 1526840280

約数和(自身を除く): 885263800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 548, 685, 1096, 1370, 2192, 2740, 4384, 5480, 10960, 21920, 29269, 58538, 117076, 146345, 234152, 292690, 468304, 585380, 936608, 1170760, 2341520, 4009853, 4683040, 8019706, 16039412, 20049265, 32078824, 40098530, 64157648, 80197060, 128315296, 160394120, 320788240, 641576480]

約数ペア:

[(1, 641576480), (2, 320788240), (4, 160394120), (5, 128315296), (8, 80197060), (10, 64157648), (16, 40098530), (20, 32078824), (32, 20049265), (40, 16039412), (80, 8019706), (137, 4683040), (160, 4009853), (274, 2341520), (548, 1170760), (685, 936608), (1096, 585380), (1370, 468304), (2192, 292690), (2740, 234152), (4384, 146345), (5480, 117076), (10960, 58538), (21920, 29269)]