20280856788

素因数分解:

$2^2\times 3^5\times {\mathrm{73}}^1\times {\mathrm{285823}}^1$

素因数の和:285915

約数の個数: 72

約数和(自身を含む): 53892686848

約数和(自身を除く): 33611830060

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 73, 81, 108, 146, 162, 219, 243, 292, 324, 438, 486, 657, 876, 972, 1314, 1971, 2628, 3942, 5913, 7884, 11826, 17739, 23652, 35478, 70956, 285823, 571646, 857469, 1143292, 1714938, 2572407, 3429876, 5144814, 7717221, 10289628, 15434442, 20865079, 23151663, 30868884, 41730158, 46303326, 62595237, 69454989, 83460316, 92606652, 125190474, 138909978, 187785711, 250380948, 277819956, 375571422, 563357133, 751142844, 1126714266, 1690071399, 2253428532, 3380142798, 5070214197, 6760285596, 10140428394, 20280856788]

約数ペア:

[(1, 20280856788), (2, 10140428394), (3, 6760285596), (4, 5070214197), (6, 3380142798), (9, 2253428532), (12, 1690071399), (18, 1126714266), (27, 751142844), (36, 563357133), (54, 375571422), (73, 277819956), (81, 250380948), (108, 187785711), (146, 138909978), (162, 125190474), (219, 92606652), (243, 83460316), (292, 69454989), (324, 62595237), (438, 46303326), (486, 41730158), (657, 30868884), (876, 23151663), (972, 20865079), (1314, 15434442), (1971, 10289628), (2628, 7717221), (3942, 5144814), (5913, 3429876), (7884, 2572407), (11826, 1714938), (17739, 1143292), (23652, 857469), (35478, 571646), (70956, 285823)]