87670220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1787}}^1$

素因数の和:2030

約数の個数: 48

約数和(自身を含む): 201858048

約数和(自身を除く): 114187828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 223, 446, 892, 1115, 1787, 2230, 2453, 3574, 4460, 4906, 7148, 8935, 9812, 12265, 17870, 19657, 24530, 35740, 39314, 49060, 78628, 98285, 196570, 393140, 398501, 797002, 1594004, 1992505, 3985010, 4383511, 7970020, 8767022, 17534044, 21917555, 43835110, 87670220]

約数ペア:

[(1, 87670220), (2, 43835110), (4, 21917555), (5, 17534044), (10, 8767022), (11, 7970020), (20, 4383511), (22, 3985010), (44, 1992505), (55, 1594004), (110, 797002), (220, 398501), (223, 393140), (446, 196570), (892, 98285), (1115, 78628), (1787, 49060), (2230, 39314), (2453, 35740), (3574, 24530), (4460, 19657), (4906, 17870), (7148, 12265), (8935, 9812)]