128514260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1847}}^1$

素因数の和:1941

約数の個数: 72

約数和(自身を含む): 318536064

約数和(自身を除く): 190021804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 284, 355, 490, 497, 710, 980, 994, 1420, 1847, 1988, 2485, 3479, 3694, 4970, 6958, 7388, 9235, 9940, 12929, 13916, 17395, 18470, 25858, 34790, 36940, 51716, 64645, 69580, 90503, 129290, 131137, 181006, 258580, 262274, 362012, 452515, 524548, 655685, 905030, 917959, 1311370, 1810060, 1835918, 2622740, 3671836, 4589795, 6425713, 9179590, 12851426, 18359180, 25702852, 32128565, 64257130, 128514260]

約数ペア:

[(1, 128514260), (2, 64257130), (4, 32128565), (5, 25702852), (7, 18359180), (10, 12851426), (14, 9179590), (20, 6425713), (28, 4589795), (35, 3671836), (49, 2622740), (70, 1835918), (71, 1810060), (98, 1311370), (140, 917959), (142, 905030), (196, 655685), (245, 524548), (284, 452515), (355, 362012), (490, 262274), (497, 258580), (710, 181006), (980, 131137), (994, 129290), (1420, 90503), (1847, 69580), (1988, 64645), (2485, 51716), (3479, 36940), (3694, 34790), (4970, 25858), (6958, 18470), (7388, 17395), (9235, 13916), (9940, 12929)]