268219120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257903}}^1$

素因数の和:257929

約数の個数: 40

約数和(自身を含む): 671582016

約数和(自身を除く): 403362896

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 257903, 515806, 1031612, 1289515, 2063224, 2579030, 3352739, 4126448, 5158060, 6705478, 10316120, 13410956, 16763695, 20632240, 26821912, 33527390, 53643824, 67054780, 134109560, 268219120]

約数ペア:

[(1, 268219120), (2, 134109560), (4, 67054780), (5, 53643824), (8, 33527390), (10, 26821912), (13, 20632240), (16, 16763695), (20, 13410956), (26, 10316120), (40, 6705478), (52, 5158060), (65, 4126448), (80, 3352739), (104, 2579030), (130, 2063224), (208, 1289515), (260, 1031612), (520, 515806), (1040, 257903)]