72643900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{661}}^1$

素因数の和:839

約数の個数: 72

約数和(自身を含む): 181578656

約数和(自身を除く): 108934756

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 157, 175, 314, 350, 628, 661, 700, 785, 1099, 1322, 1570, 2198, 2644, 3140, 3305, 3925, 4396, 4627, 5495, 6610, 7850, 9254, 10990, 13220, 15700, 16525, 18508, 21980, 23135, 27475, 33050, 46270, 54950, 66100, 92540, 103777, 109900, 115675, 207554, 231350, 415108, 462700, 518885, 726439, 1037770, 1452878, 2075540, 2594425, 2905756, 3632195, 5188850, 7264390, 10377700, 14528780, 18160975, 36321950, 72643900]

約数ペア:

[(1, 72643900), (2, 36321950), (4, 18160975), (5, 14528780), (7, 10377700), (10, 7264390), (14, 5188850), (20, 3632195), (25, 2905756), (28, 2594425), (35, 2075540), (50, 1452878), (70, 1037770), (100, 726439), (140, 518885), (157, 462700), (175, 415108), (314, 231350), (350, 207554), (628, 115675), (661, 109900), (700, 103777), (785, 92540), (1099, 66100), (1322, 54950), (1570, 46270), (2198, 33050), (2644, 27475), (3140, 23135), (3305, 21980), (3925, 18508), (4396, 16525), (4627, 15700), (5495, 13220), (6610, 10990), (7850, 9254)]