85870180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{1451}}^1$

素因数の和:1740

約数の個数: 48

約数和(自身を含む): 197588160

約数和(自身を除く): 111717980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 269, 538, 1076, 1345, 1451, 2690, 2902, 2959, 5380, 5804, 5918, 7255, 11836, 14510, 14795, 15961, 29020, 29590, 31922, 59180, 63844, 79805, 159610, 319220, 390319, 780638, 1561276, 1951595, 3903190, 4293509, 7806380, 8587018, 17174036, 21467545, 42935090, 85870180]

約数ペア:

[(1, 85870180), (2, 42935090), (4, 21467545), (5, 17174036), (10, 8587018), (11, 7806380), (20, 4293509), (22, 3903190), (44, 1951595), (55, 1561276), (110, 780638), (220, 390319), (269, 319220), (538, 159610), (1076, 79805), (1345, 63844), (1451, 59180), (2690, 31922), (2902, 29590), (2959, 29020), (5380, 15961), (5804, 14795), (5918, 14510), (7255, 11836)]