19640072

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{823}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 39057600

約数和(自身を除く): 19417528

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 157, 314, 628, 823, 1256, 1646, 2983, 3292, 5966, 6584, 11932, 15637, 23864, 31274, 62548, 125096, 129211, 258422, 516844, 1033688, 2455009, 4910018, 9820036, 19640072]

約数ペア:

[(1, 19640072), (2, 9820036), (4, 4910018), (8, 2455009), (19, 1033688), (38, 516844), (76, 258422), (152, 129211), (157, 125096), (314, 62548), (628, 31274), (823, 23864), (1256, 15637), (1646, 11932), (2983, 6584), (3292, 5966)]