87660980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{398459}}^1$

素因数の和:398479

約数の個数: 24

約数和(自身を含む): 200823840

約数和(自身を除く): 113162860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 398459, 796918, 1593836, 1992295, 3984590, 4383049, 7969180, 8766098, 17532196, 21915245, 43830490, 87660980]

約数ペア:

[(1, 87660980), (2, 43830490), (4, 21915245), (5, 17532196), (10, 8766098), (11, 7969180), (20, 4383049), (22, 3984590), (44, 1992295), (55, 1593836), (110, 796918), (220, 398459)]