20306896

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{997}}^1$

素因数の和:1091

約数の個数: 40

約数和(自身を含む): 42075680

約数和(自身を除く): 21768784

約数列:

[1, 2, 4, 8, 16, 19, 38, 67, 76, 134, 152, 268, 304, 536, 997, 1072, 1273, 1994, 2546, 3988, 5092, 7976, 10184, 15952, 18943, 20368, 37886, 66799, 75772, 133598, 151544, 267196, 303088, 534392, 1068784, 1269181, 2538362, 5076724, 10153448, 20306896]

約数ペア:

[(1, 20306896), (2, 10153448), (4, 5076724), (8, 2538362), (16, 1269181), (19, 1068784), (38, 534392), (67, 303088), (76, 267196), (134, 151544), (152, 133598), (268, 75772), (304, 66799), (536, 37886), (997, 20368), (1072, 18943), (1273, 15952), (1994, 10184), (2546, 7976), (3988, 5092)]