261497565

素因数分解:

$3^4\times 5^1\times 7^2\times {\mathrm{13177}}^1$

素因数の和:13208

約数の個数: 60

約数和(自身を含む): 545331996

約数和(自身を除く): 283834431

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 245, 315, 405, 441, 567, 735, 945, 1323, 2205, 2835, 3969, 6615, 13177, 19845, 39531, 65885, 92239, 118593, 197655, 276717, 355779, 461195, 592965, 645673, 830151, 1067337, 1383585, 1778895, 1937019, 2490453, 3228365, 4150755, 5336685, 5811057, 7471359, 9685095, 12452265, 17433171, 29055285, 37356795, 52299513, 87165855, 261497565]

約数ペア:

[(1, 261497565), (3, 87165855), (5, 52299513), (7, 37356795), (9, 29055285), (15, 17433171), (21, 12452265), (27, 9685095), (35, 7471359), (45, 5811057), (49, 5336685), (63, 4150755), (81, 3228365), (105, 2490453), (135, 1937019), (147, 1778895), (189, 1383585), (245, 1067337), (315, 830151), (405, 645673), (441, 592965), (567, 461195), (735, 355779), (945, 276717), (1323, 197655), (2205, 118593), (2835, 92239), (3969, 65885), (6615, 39531), (13177, 19845)]