64878254

素因数分解:

$2^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{12491}}^1$

素因数の和:12560

約数の個数: 24

約数和(自身を含む): 115351128

約数和(自身を除く): 50472874

約数列:

[1, 2, 7, 14, 49, 53, 98, 106, 371, 742, 2597, 5194, 12491, 24982, 87437, 174874, 612059, 662023, 1224118, 1324046, 4634161, 9268322, 32439127, 64878254]

約数ペア:

[(1, 64878254), (2, 32439127), (7, 9268322), (14, 4634161), (49, 1324046), (53, 1224118), (98, 662023), (106, 612059), (371, 174874), (742, 87437), (2597, 24982), (5194, 12491)]