20625570

素因数分解:

$2^1\times 3^3\times 5^1\times 7^2\times {\mathrm{1559}}^1$

素因数の和:1589

約数の個数: 96

約数和(自身を含む): 64022400

約数和(自身を除く): 43396830

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 90, 98, 105, 126, 135, 147, 189, 210, 245, 270, 294, 315, 378, 441, 490, 630, 735, 882, 945, 1323, 1470, 1559, 1890, 2205, 2646, 3118, 4410, 4677, 6615, 7795, 9354, 10913, 13230, 14031, 15590, 21826, 23385, 28062, 32739, 42093, 46770, 54565, 65478, 70155, 76391, 84186, 98217, 109130, 140310, 152782, 163695, 196434, 210465, 229173, 294651, 327390, 381955, 420930, 458346, 491085, 589302, 687519, 763910, 982170, 1145865, 1375038, 1473255, 2062557, 2291730, 2946510, 3437595, 4125114, 6875190, 10312785, 20625570]

約数ペア:

[(1, 20625570), (2, 10312785), (3, 6875190), (5, 4125114), (6, 3437595), (7, 2946510), (9, 2291730), (10, 2062557), (14, 1473255), (15, 1375038), (18, 1145865), (21, 982170), (27, 763910), (30, 687519), (35, 589302), (42, 491085), (45, 458346), (49, 420930), (54, 381955), (63, 327390), (70, 294651), (90, 229173), (98, 210465), (105, 196434), (126, 163695), (135, 152782), (147, 140310), (189, 109130), (210, 98217), (245, 84186), (270, 76391), (294, 70155), (315, 65478), (378, 54565), (441, 46770), (490, 42093), (630, 32739), (735, 28062), (882, 23385), (945, 21826), (1323, 15590), (1470, 14031), (1559, 13230), (1890, 10913), (2205, 9354), (2646, 7795), (3118, 6615), (4410, 4677)]