20566888

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{653}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 40181760

約数和(自身を除く): 19614872

約数列:

[1, 2, 4, 8, 31, 62, 124, 127, 248, 254, 508, 653, 1016, 1306, 2612, 3937, 5224, 7874, 15748, 20243, 31496, 40486, 80972, 82931, 161944, 165862, 331724, 663448, 2570861, 5141722, 10283444, 20566888]

約数ペア:

[(1, 20566888), (2, 10283444), (4, 5141722), (8, 2570861), (31, 663448), (62, 331724), (124, 165862), (127, 161944), (248, 82931), (254, 80972), (508, 40486), (653, 31496), (1016, 20243), (1306, 15748), (2612, 7874), (3937, 5224)]