55505560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1249}}^1$

素因数の和:1372

約数の個数: 64

約数和(自身を含む): 137700000

約数和(自身を除く): 82194440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 101, 110, 202, 220, 404, 440, 505, 808, 1010, 1111, 1249, 2020, 2222, 2498, 4040, 4444, 4996, 5555, 6245, 8888, 9992, 11110, 12490, 13739, 22220, 24980, 27478, 44440, 49960, 54956, 68695, 109912, 126149, 137390, 252298, 274780, 504596, 549560, 630745, 1009192, 1261490, 1387639, 2522980, 2775278, 5045960, 5550556, 6938195, 11101112, 13876390, 27752780, 55505560]

約数ペア:

[(1, 55505560), (2, 27752780), (4, 13876390), (5, 11101112), (8, 6938195), (10, 5550556), (11, 5045960), (20, 2775278), (22, 2522980), (40, 1387639), (44, 1261490), (55, 1009192), (88, 630745), (101, 549560), (110, 504596), (202, 274780), (220, 252298), (404, 137390), (440, 126149), (505, 109912), (808, 68695), (1010, 54956), (1111, 49960), (1249, 44440), (2020, 27478), (2222, 24980), (2498, 22220), (4040, 13739), (4444, 12490), (4996, 11110), (5555, 9992), (6245, 8888)]