25515555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 22384605

約数列:

[1, 3, 5, 13, 15, 17, 39, 43, 51, 65, 85, 129, 179, 195, 215, 221, 255, 537, 559, 645, 663, 731, 895, 1105, 1677, 2193, 2327, 2685, 2795, 3043, 3315, 3655, 6981, 7697, 8385, 9129, 9503, 10965, 11635, 15215, 23091, 28509, 34905, 38485, 39559, 45645, 47515, 100061, 115455, 118677, 130849, 142545, 197795, 300183, 392547, 500305, 593385, 654245, 1500915, 1701037, 1962735, 5103111, 8505185, 25515555]

約数ペア:

[(1, 25515555), (3, 8505185), (5, 5103111), (13, 1962735), (15, 1701037), (17, 1500915), (39, 654245), (43, 593385), (51, 500305), (65, 392547), (85, 300183), (129, 197795), (179, 142545), (195, 130849), (215, 118677), (221, 115455), (255, 100061), (537, 47515), (559, 45645), (645, 39559), (663, 38485), (731, 34905), (895, 28509), (1105, 23091), (1677, 15215), (2193, 11635), (2327, 10965), (2685, 9503), (2795, 9129), (3043, 8385), (3315, 7697), (3655, 6981)]