207218128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{18797}}^1$

素因数の和:18871

約数の個数: 40

約数和(自身を含む): 440549928

約数和(自身を除く): 233331800

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 2756, 5512, 11024, 18797, 37594, 75188, 150376, 244361, 300752, 488722, 977444, 996241, 1954888, 1992482, 3909776, 3984964, 7969928, 12951133, 15939856, 25902266, 51804532, 103609064, 207218128]

約数ペア:

[(1, 207218128), (2, 103609064), (4, 51804532), (8, 25902266), (13, 15939856), (16, 12951133), (26, 7969928), (52, 3984964), (53, 3909776), (104, 1992482), (106, 1954888), (208, 996241), (212, 977444), (424, 488722), (689, 300752), (848, 244361), (1378, 150376), (2756, 75188), (5512, 37594), (11024, 18797)]