19853820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{2251}}^1$

素因数の和:2280

約数の個数: 108

約数和(自身を含む): 70086744

約数和(自身を除く): 50232924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2251, 2940, 4410, 4502, 6753, 8820, 9004, 11255, 13506, 15757, 20259, 22510, 27012, 31514, 33765, 40518, 45020, 47271, 63028, 67530, 78785, 81036, 94542, 101295, 110299, 135060, 141813, 157570, 189084, 202590, 220598, 236355, 283626, 315140, 330897, 405180, 441196, 472710, 551495, 567252, 661794, 709065, 945420, 992691, 1102990, 1323588, 1418130, 1654485, 1985382, 2205980, 2836260, 3308970, 3970764, 4963455, 6617940, 9926910, 19853820]

約数ペア:

[(1, 19853820), (2, 9926910), (3, 6617940), (4, 4963455), (5, 3970764), (6, 3308970), (7, 2836260), (9, 2205980), (10, 1985382), (12, 1654485), (14, 1418130), (15, 1323588), (18, 1102990), (20, 992691), (21, 945420), (28, 709065), (30, 661794), (35, 567252), (36, 551495), (42, 472710), (45, 441196), (49, 405180), (60, 330897), (63, 315140), (70, 283626), (84, 236355), (90, 220598), (98, 202590), (105, 189084), (126, 157570), (140, 141813), (147, 135060), (180, 110299), (196, 101295), (210, 94542), (245, 81036), (252, 78785), (294, 67530), (315, 63028), (420, 47271), (441, 45020), (490, 40518), (588, 33765), (630, 31514), (735, 27012), (882, 22510), (980, 20259), (1260, 15757), (1470, 13506), (1764, 11255), (2205, 9004), (2251, 8820), (2940, 6753), (4410, 4502)]