25638860

素因数分解:

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

素因数の和:3234

約数の個数: 48

約数和(自身を含む): 59872512

約数和(自身を除く): 34233652

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 3181, 4030, 6362, 8060, 12724, 15905, 31810, 41353, 63620, 82706, 98611, 165412, 197222, 206765, 394444, 413530, 493055, 827060, 986110, 1281943, 1972220, 2563886, 5127772, 6409715, 12819430, 25638860]

約数ペア:

[(1, 25638860), (2, 12819430), (4, 6409715), (5, 5127772), (10, 2563886), (13, 1972220), (20, 1281943), (26, 986110), (31, 827060), (52, 493055), (62, 413530), (65, 394444), (124, 206765), (130, 197222), (155, 165412), (260, 98611), (310, 82706), (403, 63620), (620, 41353), (806, 31810), (1612, 15905), (2015, 12724), (3181, 8060), (4030, 6362)]