20403646

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:244

約数の個数: 32

約数和(自身を含む): 33033600

約数和(自身を除く): 12629954

約数列:

[1, 2, 29, 58, 61, 73, 79, 122, 146, 158, 1769, 2117, 2291, 3538, 4234, 4453, 4582, 4819, 5767, 8906, 9638, 11534, 129137, 139751, 167243, 258274, 279502, 334486, 351787, 703574, 10201823, 20403646]

約数ペア:

[(1, 20403646), (2, 10201823), (29, 703574), (58, 351787), (61, 334486), (73, 279502), (79, 258274), (122, 167243), (146, 139751), (158, 129137), (1769, 11534), (2117, 9638), (2291, 8906), (3538, 5767), (4234, 4819), (4453, 4582)]