13256728

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{433}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 25779600

約数和(自身を除く): 12522872

約数列:

[1, 2, 4, 8, 43, 86, 89, 172, 178, 344, 356, 433, 712, 866, 1732, 3464, 3827, 7654, 15308, 18619, 30616, 37238, 38537, 74476, 77074, 148952, 154148, 308296, 1657091, 3314182, 6628364, 13256728]

約数ペア:

[(1, 13256728), (2, 6628364), (4, 3314182), (8, 1657091), (43, 308296), (86, 154148), (89, 148952), (172, 77074), (178, 74476), (344, 38537), (356, 37238), (433, 30616), (712, 18619), (866, 15308), (1732, 7654), (3464, 3827)]