15640016

素因数分解:

$2^4\times 7^2\times {\mathrm{19949}}^1$

素因数の和:19971

約数の個数: 30

約数和(自身を含む): 35251650

約数和(自身を除く): 19611634

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 19949, 39898, 79796, 139643, 159592, 279286, 319184, 558572, 977501, 1117144, 1955002, 2234288, 3910004, 7820008, 15640016]

約数ペア:

[(1, 15640016), (2, 7820008), (4, 3910004), (7, 2234288), (8, 1955002), (14, 1117144), (16, 977501), (28, 558572), (49, 319184), (56, 279286), (98, 159592), (112, 139643), (196, 79796), (392, 39898), (784, 19949)]