77928620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7229}}^1$

素因数の和:7263

約数の個数: 72

約数和(自身を含む): 207703440

約数和(自身を除く): 129774820

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 7229, 10780, 14458, 28916, 36145, 50603, 72290, 79519, 101206, 144580, 159038, 202412, 253015, 318076, 354221, 397595, 506030, 556633, 708442, 795190, 1012060, 1113266, 1416884, 1590380, 1771105, 2226532, 2783165, 3542210, 3896431, 5566330, 7084420, 7792862, 11132660, 15585724, 19482155, 38964310, 77928620]

約数ペア:

[(1, 77928620), (2, 38964310), (4, 19482155), (5, 15585724), (7, 11132660), (10, 7792862), (11, 7084420), (14, 5566330), (20, 3896431), (22, 3542210), (28, 2783165), (35, 2226532), (44, 1771105), (49, 1590380), (55, 1416884), (70, 1113266), (77, 1012060), (98, 795190), (110, 708442), (140, 556633), (154, 506030), (196, 397595), (220, 354221), (245, 318076), (308, 253015), (385, 202412), (490, 159038), (539, 144580), (770, 101206), (980, 79519), (1078, 72290), (1540, 50603), (2156, 36145), (2695, 28916), (5390, 14458), (7229, 10780)]