240385940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1\times {\mathrm{431}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 513838080

約数和(自身を除く): 273452140

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 353, 395, 431, 706, 790, 862, 1412, 1580, 1724, 1765, 2155, 3530, 4310, 7060, 8620, 27887, 34049, 55774, 68098, 111548, 136196, 139435, 152143, 170245, 278870, 304286, 340490, 557740, 608572, 680980, 760715, 1521430, 3042860, 12019297, 24038594, 48077188, 60096485, 120192970, 240385940]

約数ペア:

[(1, 240385940), (2, 120192970), (4, 60096485), (5, 48077188), (10, 24038594), (20, 12019297), (79, 3042860), (158, 1521430), (316, 760715), (353, 680980), (395, 608572), (431, 557740), (706, 340490), (790, 304286), (862, 278870), (1412, 170245), (1580, 152143), (1724, 139435), (1765, 136196), (2155, 111548), (3530, 68098), (4310, 55774), (7060, 34049), (8620, 27887)]