28067715

素因数分解:

$3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1777}}^1$

素因数の和:1810

約数の個数: 48

約数和(自身を含む): 54364128

約数和(自身を除く): 26296413

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 243, 351, 405, 585, 1053, 1215, 1755, 1777, 3159, 5265, 5331, 8885, 15795, 15993, 23101, 26655, 47979, 69303, 79965, 115505, 143937, 207909, 239895, 346515, 431811, 623727, 719685, 1039545, 1871181, 2159055, 3118635, 5613543, 9355905, 28067715]

約数ペア:

[(1, 28067715), (3, 9355905), (5, 5613543), (9, 3118635), (13, 2159055), (15, 1871181), (27, 1039545), (39, 719685), (45, 623727), (65, 431811), (81, 346515), (117, 239895), (135, 207909), (195, 143937), (243, 115505), (351, 79965), (405, 69303), (585, 47979), (1053, 26655), (1215, 23101), (1755, 15993), (1777, 15795), (3159, 8885), (5265, 5331)]