20659980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1361}}^1$

素因数の和:1407

約数の個数: 96

約数和(自身を含む): 65899008

約数和(自身を除く): 45239028

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 23, 30, 33, 44, 46, 55, 60, 66, 69, 92, 110, 115, 132, 138, 165, 220, 230, 253, 276, 330, 345, 460, 506, 660, 690, 759, 1012, 1265, 1361, 1380, 1518, 2530, 2722, 3036, 3795, 4083, 5060, 5444, 6805, 7590, 8166, 13610, 14971, 15180, 16332, 20415, 27220, 29942, 31303, 40830, 44913, 59884, 62606, 74855, 81660, 89826, 93909, 125212, 149710, 156515, 179652, 187818, 224565, 299420, 313030, 344333, 375636, 449130, 469545, 626060, 688666, 898260, 939090, 1032999, 1377332, 1721665, 1878180, 2065998, 3443330, 4131996, 5164995, 6886660, 10329990, 20659980]

約数ペア:

[(1, 20659980), (2, 10329990), (3, 6886660), (4, 5164995), (5, 4131996), (6, 3443330), (10, 2065998), (11, 1878180), (12, 1721665), (15, 1377332), (20, 1032999), (22, 939090), (23, 898260), (30, 688666), (33, 626060), (44, 469545), (46, 449130), (55, 375636), (60, 344333), (66, 313030), (69, 299420), (92, 224565), (110, 187818), (115, 179652), (132, 156515), (138, 149710), (165, 125212), (220, 93909), (230, 89826), (253, 81660), (276, 74855), (330, 62606), (345, 59884), (460, 44913), (506, 40830), (660, 31303), (690, 29942), (759, 27220), (1012, 20415), (1265, 16332), (1361, 15180), (1380, 14971), (1518, 13610), (2530, 8166), (2722, 7590), (3036, 6805), (3795, 5444), (4083, 5060)]