261520220516

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{19854253}}^1$

素因数の和:19854383

約数の個数: 24

約数和(自身を含む): 475310840760

約数和(自身を除く): 213790620244

約数列:

[1, 2, 4, 37, 74, 89, 148, 178, 356, 3293, 6586, 13172, 19854253, 39708506, 79417012, 734607361, 1469214722, 1767028517, 2938429444, 3534057034, 7068114068, 65380055129, 130760110258, 261520220516]

約数ペア:

[(1, 261520220516), (2, 130760110258), (4, 65380055129), (37, 7068114068), (74, 3534057034), (89, 2938429444), (148, 1767028517), (178, 1469214722), (356, 734607361), (3293, 79417012), (6586, 39708506), (13172, 19854253)]