87681640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2281}}^1$

素因数の和:2354

約数の個数: 48

約数和(自身を含む): 203942340

約数和(自身を除く): 116260700

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 2281, 3844, 4562, 4805, 7688, 9124, 9610, 11405, 18248, 19220, 22810, 38440, 45620, 70711, 91240, 141422, 282844, 353555, 565688, 707110, 1414220, 2192041, 2828440, 4384082, 8768164, 10960205, 17536328, 21920410, 43840820, 87681640]

約数ペア:

[(1, 87681640), (2, 43840820), (4, 21920410), (5, 17536328), (8, 10960205), (10, 8768164), (20, 4384082), (31, 2828440), (40, 2192041), (62, 1414220), (124, 707110), (155, 565688), (248, 353555), (310, 282844), (620, 141422), (961, 91240), (1240, 70711), (1922, 45620), (2281, 38440), (3844, 22810), (4562, 19220), (4805, 18248), (7688, 11405), (9124, 9610)]