11161220

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1627}}^1$

素因数の和:1657

約数の個数: 48

約数和(自身を含む): 27350400

約数和(自身を除く): 16189180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1627, 1715, 3254, 3430, 6508, 6860, 8135, 11389, 16270, 22778, 32540, 45556, 56945, 79723, 113890, 159446, 227780, 318892, 398615, 558061, 797230, 1116122, 1594460, 2232244, 2790305, 5580610, 11161220]

約数ペア:

[(1, 11161220), (2, 5580610), (4, 2790305), (5, 2232244), (7, 1594460), (10, 1116122), (14, 797230), (20, 558061), (28, 398615), (35, 318892), (49, 227780), (70, 159446), (98, 113890), (140, 79723), (196, 56945), (245, 45556), (343, 32540), (490, 22778), (686, 16270), (980, 11389), (1372, 8135), (1627, 6860), (1715, 6508), (3254, 3430)]