28750904

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{541}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 67381440

約数和(自身を除く): 38630536

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 73, 91, 104, 146, 182, 292, 364, 511, 541, 584, 728, 949, 1022, 1082, 1898, 2044, 2164, 3787, 3796, 4088, 4328, 6643, 7033, 7574, 7592, 13286, 14066, 15148, 26572, 28132, 30296, 39493, 49231, 53144, 56264, 78986, 98462, 157972, 196924, 276451, 315944, 393848, 513409, 552902, 1026818, 1105804, 2053636, 2211608, 3593863, 4107272, 7187726, 14375452, 28750904]

約数ペア:

[(1, 28750904), (2, 14375452), (4, 7187726), (7, 4107272), (8, 3593863), (13, 2211608), (14, 2053636), (26, 1105804), (28, 1026818), (52, 552902), (56, 513409), (73, 393848), (91, 315944), (104, 276451), (146, 196924), (182, 157972), (292, 98462), (364, 78986), (511, 56264), (541, 53144), (584, 49231), (728, 39493), (949, 30296), (1022, 28132), (1082, 26572), (1898, 15148), (2044, 14066), (2164, 13286), (3787, 7592), (3796, 7574), (4088, 7033), (4328, 6643)]