27752780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1249}}^1$

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 64260000

約数和(自身を除く): 36507220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1111, 1249, 2020, 2222, 2498, 4444, 4996, 5555, 6245, 11110, 12490, 13739, 22220, 24980, 27478, 54956, 68695, 126149, 137390, 252298, 274780, 504596, 630745, 1261490, 1387639, 2522980, 2775278, 5550556, 6938195, 13876390, 27752780]

約数ペア:

[(1, 27752780), (2, 13876390), (4, 6938195), (5, 5550556), (10, 2775278), (11, 2522980), (20, 1387639), (22, 1261490), (44, 630745), (55, 504596), (101, 274780), (110, 252298), (202, 137390), (220, 126149), (404, 68695), (505, 54956), (1010, 27478), (1111, 24980), (1249, 22220), (2020, 13739), (2222, 12490), (2498, 11110), (4444, 6245), (4996, 5555)]