81402660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3301}}^1$

素因数の和:3453

約数の個数: 72

約数和(自身を含む): 248799096

約数和(自身を除く): 167396436

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 137, 180, 274, 411, 548, 685, 822, 1233, 1370, 1644, 2055, 2466, 2740, 3301, 4110, 4932, 6165, 6602, 8220, 9903, 12330, 13204, 16505, 19806, 24660, 29709, 33010, 39612, 49515, 59418, 66020, 99030, 118836, 148545, 198060, 297090, 452237, 594180, 904474, 1356711, 1808948, 2261185, 2713422, 4070133, 4522370, 5426844, 6783555, 8140266, 9044740, 13567110, 16280532, 20350665, 27134220, 40701330, 81402660]

約数ペア:

[(1, 81402660), (2, 40701330), (3, 27134220), (4, 20350665), (5, 16280532), (6, 13567110), (9, 9044740), (10, 8140266), (12, 6783555), (15, 5426844), (18, 4522370), (20, 4070133), (30, 2713422), (36, 2261185), (45, 1808948), (60, 1356711), (90, 904474), (137, 594180), (180, 452237), (274, 297090), (411, 198060), (548, 148545), (685, 118836), (822, 99030), (1233, 66020), (1370, 59418), (1644, 49515), (2055, 39612), (2466, 33010), (2740, 29709), (3301, 24660), (4110, 19806), (4932, 16505), (6165, 13204), (6602, 12330), (8220, 9903)]