20189464

素因数分解:

$2^3\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{191}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 38787840

約数和(自身を除く): 18598376

約数列:

[1, 2, 4, 8, 73, 146, 181, 191, 292, 362, 382, 584, 724, 764, 1448, 1528, 13213, 13943, 26426, 27886, 34571, 52852, 55772, 69142, 105704, 111544, 138284, 276568, 2523683, 5047366, 10094732, 20189464]

約数ペア:

[(1, 20189464), (2, 10094732), (4, 5047366), (8, 2523683), (73, 276568), (146, 138284), (181, 111544), (191, 105704), (292, 69142), (362, 55772), (382, 52852), (584, 34571), (724, 27886), (764, 26426), (1448, 13943), (1528, 13213)]