51277720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3181}}^1$

素因数の和:3236

約数の個数: 64

約数和(自身を含む): 128298240

約数和(自身を除く): 77020520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3181, 3224, 4030, 6362, 8060, 12724, 15905, 16120, 25448, 31810, 41353, 63620, 82706, 98611, 127240, 165412, 197222, 206765, 330824, 394444, 413530, 493055, 788888, 827060, 986110, 1281943, 1654120, 1972220, 2563886, 3944440, 5127772, 6409715, 10255544, 12819430, 25638860, 51277720]

約数ペア:

[(1, 51277720), (2, 25638860), (4, 12819430), (5, 10255544), (8, 6409715), (10, 5127772), (13, 3944440), (20, 2563886), (26, 1972220), (31, 1654120), (40, 1281943), (52, 986110), (62, 827060), (65, 788888), (104, 493055), (124, 413530), (130, 394444), (155, 330824), (248, 206765), (260, 197222), (310, 165412), (403, 127240), (520, 98611), (620, 82706), (806, 63620), (1240, 41353), (1612, 31810), (2015, 25448), (3181, 16120), (3224, 15905), (4030, 12724), (6362, 8060)]