280565590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{77719}}^1$

素因数の和:77764

約数の個数: 24

約数和(自身を含む): 533003760

約数和(自身を除く): 252438170

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 77719, 155438, 388595, 777190, 1476661, 2953322, 7383305, 14766610, 28056559, 56113118, 140282795, 280565590]

約数ペア:

[(1, 280565590), (2, 140282795), (5, 56113118), (10, 28056559), (19, 14766610), (38, 7383305), (95, 2953322), (190, 1476661), (361, 777190), (722, 388595), (1805, 155438), (3610, 77719)]