77931420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{185551}}^1$

素因数の和:185570

約数の個数: 48

約数和(自身を含む): 249381888

約数和(自身を除く): 171450468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 185551, 371102, 556653, 742204, 927755, 1113306, 1298857, 1855510, 2226612, 2597714, 2783265, 3711020, 3896571, 5195428, 5566530, 6494285, 7793142, 11133060, 12988570, 15586284, 19482855, 25977140, 38965710, 77931420]

約数ペア:

[(1, 77931420), (2, 38965710), (3, 25977140), (4, 19482855), (5, 15586284), (6, 12988570), (7, 11133060), (10, 7793142), (12, 6494285), (14, 5566530), (15, 5195428), (20, 3896571), (21, 3711020), (28, 2783265), (30, 2597714), (35, 2226612), (42, 1855510), (60, 1298857), (70, 1113306), (84, 927755), (105, 742204), (140, 556653), (210, 371102), (420, 185551)]