39968476

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:442

約数の個数: 36

約数和(自身を含む): 74889360

約数和(自身を除く): 34920884

約数列:

[1, 2, 4, 19, 38, 76, 89, 178, 311, 356, 361, 622, 722, 1244, 1444, 1691, 3382, 5909, 6764, 11818, 23636, 27679, 32129, 55358, 64258, 110716, 112271, 128516, 224542, 449084, 525901, 1051802, 2103604, 9992119, 19984238, 39968476]

約数ペア:

[(1, 39968476), (2, 19984238), (4, 9992119), (19, 2103604), (38, 1051802), (76, 525901), (89, 449084), (178, 224542), (311, 128516), (356, 112271), (361, 110716), (622, 64258), (722, 55358), (1244, 32129), (1444, 27679), (1691, 23636), (3382, 11818), (5909, 6764)]