25489260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 84520800

約数和(自身を除く): 59031540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 29, 30, 36, 38, 45, 57, 58, 60, 76, 87, 90, 95, 114, 116, 145, 171, 174, 180, 190, 228, 257, 261, 285, 290, 342, 348, 380, 435, 514, 522, 551, 570, 580, 684, 771, 855, 870, 1028, 1044, 1102, 1140, 1285, 1305, 1542, 1653, 1710, 1740, 2204, 2313, 2570, 2610, 2755, 3084, 3306, 3420, 3855, 4626, 4883, 4959, 5140, 5220, 5510, 6612, 7453, 7710, 8265, 9252, 9766, 9918, 11020, 11565, 14649, 14906, 15420, 16530, 19532, 19836, 22359, 23130, 24415, 24795, 29298, 29812, 33060, 37265, 43947, 44718, 46260, 48830, 49590, 58596, 67077, 73245, 74530, 87894, 89436, 97660, 99180, 111795, 134154, 141607, 146490, 149060, 175788, 219735, 223590, 268308, 283214, 292980, 335385, 424821, 439470, 447180, 566428, 670770, 708035, 849642, 878940, 1274463, 1341540, 1416070, 1699284, 2124105, 2548926, 2832140, 4248210, 5097852, 6372315, 8496420, 12744630, 25489260]

約数ペア:

[(1, 25489260), (2, 12744630), (3, 8496420), (4, 6372315), (5, 5097852), (6, 4248210), (9, 2832140), (10, 2548926), (12, 2124105), (15, 1699284), (18, 1416070), (19, 1341540), (20, 1274463), (29, 878940), (30, 849642), (36, 708035), (38, 670770), (45, 566428), (57, 447180), (58, 439470), (60, 424821), (76, 335385), (87, 292980), (90, 283214), (95, 268308), (114, 223590), (116, 219735), (145, 175788), (171, 149060), (174, 146490), (180, 141607), (190, 134154), (228, 111795), (257, 99180), (261, 97660), (285, 89436), (290, 87894), (342, 74530), (348, 73245), (380, 67077), (435, 58596), (514, 49590), (522, 48830), (551, 46260), (570, 44718), (580, 43947), (684, 37265), (771, 33060), (855, 29812), (870, 29298), (1028, 24795), (1044, 24415), (1102, 23130), (1140, 22359), (1285, 19836), (1305, 19532), (1542, 16530), (1653, 15420), (1710, 14906), (1740, 14649), (2204, 11565), (2313, 11020), (2570, 9918), (2610, 9766), (2755, 9252), (3084, 8265), (3306, 7710), (3420, 7453), (3855, 6612), (4626, 5510), (4883, 5220), (4959, 5140)]