390147140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{54037}}^1$

素因数の和:54084

約数の個数: 36

約数和(自身を含む): 864716076

約数和(自身を除く): 474568936

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 54037, 108074, 216148, 270185, 540370, 1026703, 1080740, 2053406, 4106812, 5133515, 10267030, 19507357, 20534060, 39014714, 78029428, 97536785, 195073570, 390147140]

約数ペア:

[(1, 390147140), (2, 195073570), (4, 97536785), (5, 78029428), (10, 39014714), (19, 20534060), (20, 19507357), (38, 10267030), (76, 5133515), (95, 4106812), (190, 2053406), (361, 1080740), (380, 1026703), (722, 540370), (1444, 270185), (1805, 216148), (3610, 108074), (7220, 54037)]