20798907660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2180179}}^1$

素因数の和:2180247

約数の個数: 72

約数和(自身を含む): 64280427120

約数和(自身を除く): 43481519460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2385, 3180, 4770, 9540, 2180179, 4360358, 6540537, 8720716, 10900895, 13081074, 19621611, 21801790, 26162148, 32702685, 39243222, 43603580, 65405370, 78486444, 98108055, 115549487, 130810740, 196216110, 231098974, 346648461, 392432220, 462197948, 577747435, 693296922, 1039945383, 1155494870, 1386593844, 1733242305, 2079890766, 2310989740, 3466484610, 4159781532, 5199726915, 6932969220, 10399453830, 20798907660]

約数ペア:

[(1, 20798907660), (2, 10399453830), (3, 6932969220), (4, 5199726915), (5, 4159781532), (6, 3466484610), (9, 2310989740), (10, 2079890766), (12, 1733242305), (15, 1386593844), (18, 1155494870), (20, 1039945383), (30, 693296922), (36, 577747435), (45, 462197948), (53, 392432220), (60, 346648461), (90, 231098974), (106, 196216110), (159, 130810740), (180, 115549487), (212, 98108055), (265, 78486444), (318, 65405370), (477, 43603580), (530, 39243222), (636, 32702685), (795, 26162148), (954, 21801790), (1060, 19621611), (1590, 13081074), (1908, 10900895), (2385, 8720716), (3180, 6540537), (4770, 4360358), (9540, 2180179)]