20018808

素因数分解:

$2^3\times 3^2\times {\mathrm{31}}^1\times {\mathrm{8969}}^1$

素因数の和:9012

約数の個数: 48

約数和(自身を含む): 55972800

約数和(自身を除く): 35953992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 31, 36, 62, 72, 93, 124, 186, 248, 279, 372, 558, 744, 1116, 2232, 8969, 17938, 26907, 35876, 53814, 71752, 80721, 107628, 161442, 215256, 278039, 322884, 556078, 645768, 834117, 1112156, 1668234, 2224312, 2502351, 3336468, 5004702, 6672936, 10009404, 20018808]

約数ペア:

[(1, 20018808), (2, 10009404), (3, 6672936), (4, 5004702), (6, 3336468), (8, 2502351), (9, 2224312), (12, 1668234), (18, 1112156), (24, 834117), (31, 645768), (36, 556078), (62, 322884), (72, 278039), (93, 215256), (124, 161442), (186, 107628), (248, 80721), (279, 71752), (372, 53814), (558, 35876), (744, 26907), (1116, 17938), (2232, 8969)]