257869444

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{6827}}^1$

素因数の和:6928

約数の個数: 48

約数和(自身を含む): 550609920

約数和(自身を除く): 292740476

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 71, 76, 133, 142, 266, 284, 497, 532, 994, 1349, 1988, 2698, 5396, 6827, 9443, 13654, 18886, 27308, 37772, 47789, 95578, 129713, 191156, 259426, 484717, 518852, 907991, 969434, 1815982, 1938868, 3393019, 3631964, 6786038, 9209623, 13572076, 18419246, 36838492, 64467361, 128934722, 257869444]

約数ペア:

[(1, 257869444), (2, 128934722), (4, 64467361), (7, 36838492), (14, 18419246), (19, 13572076), (28, 9209623), (38, 6786038), (71, 3631964), (76, 3393019), (133, 1938868), (142, 1815982), (266, 969434), (284, 907991), (497, 518852), (532, 484717), (994, 259426), (1349, 191156), (1988, 129713), (2698, 95578), (5396, 47789), (6827, 37772), (9443, 27308), (13654, 18886)]