13201720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47149}}^1$

素因数の和:47167

約数の個数: 32

約数和(自身を含む): 33948000

約数和(自身を除く): 20746280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 47149, 94298, 188596, 235745, 330043, 377192, 471490, 660086, 942980, 1320172, 1650215, 1885960, 2640344, 3300430, 6600860, 13201720]

約数ペア:

[(1, 13201720), (2, 6600860), (4, 3300430), (5, 2640344), (7, 1885960), (8, 1650215), (10, 1320172), (14, 942980), (20, 660086), (28, 471490), (35, 377192), (40, 330043), (56, 235745), (70, 188596), (140, 94298), (280, 47149)]