17681720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{63149}}^1$

素因数の和:63167

約数の個数: 32

約数和(自身を含む): 45468000

約数和(自身を除く): 27786280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 63149, 126298, 252596, 315745, 442043, 505192, 631490, 884086, 1262980, 1768172, 2210215, 2525960, 3536344, 4420430, 8840860, 17681720]

約数ペア:

[(1, 17681720), (2, 8840860), (4, 4420430), (5, 3536344), (7, 2525960), (8, 2210215), (10, 1768172), (14, 1262980), (20, 884086), (28, 631490), (35, 505192), (40, 442043), (56, 315745), (70, 252596), (140, 126298), (280, 63149)]