648654578

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{20071}}^1$

素因数の和:20210

約数の個数: 32

約数和(自身を含む): 1153256832

約数和(自身を除く): 504602254

約数列:

[1, 2, 11, 13, 22, 26, 113, 143, 226, 286, 1243, 1469, 2486, 2938, 16159, 20071, 32318, 40142, 220781, 260923, 441562, 521846, 2268023, 2870153, 4536046, 5740306, 24948253, 29484299, 49896506, 58968598, 324327289, 648654578]

約数ペア:

[(1, 648654578), (2, 324327289), (11, 58968598), (13, 49896506), (22, 29484299), (26, 24948253), (113, 5740306), (143, 4536046), (226, 2870153), (286, 2268023), (1243, 521846), (1469, 441562), (2486, 260923), (2938, 220781), (16159, 40142), (20071, 32318)]