19793620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12853}}^1$

素因数の和:12880

約数の個数: 48

約数和(自身を含む): 51827328

約数和(自身を除く): 32033708

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12853, 25706, 51412, 64265, 89971, 128530, 141383, 179942, 257060, 282766, 359884, 449855, 565532, 706915, 899710, 989681, 1413830, 1799420, 1979362, 2827660, 3958724, 4948405, 9896810, 19793620]

約数ペア:

[(1, 19793620), (2, 9896810), (4, 4948405), (5, 3958724), (7, 2827660), (10, 1979362), (11, 1799420), (14, 1413830), (20, 989681), (22, 899710), (28, 706915), (35, 565532), (44, 449855), (55, 359884), (70, 282766), (77, 257060), (110, 179942), (140, 141383), (154, 128530), (220, 89971), (308, 64265), (385, 51412), (770, 25706), (1540, 12853)]