81886420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53173}}^1$

素因数の和:53200

約数の個数: 48

約数和(自身を含む): 214397568

約数和(自身を除く): 132511148

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 53173, 106346, 212692, 265865, 372211, 531730, 584903, 744422, 1063460, 1169806, 1488844, 1861055, 2339612, 2924515, 3722110, 4094321, 5849030, 7444220, 8188642, 11698060, 16377284, 20471605, 40943210, 81886420]

約数ペア:

[(1, 81886420), (2, 40943210), (4, 20471605), (5, 16377284), (7, 11698060), (10, 8188642), (11, 7444220), (14, 5849030), (20, 4094321), (22, 3722110), (28, 2924515), (35, 2339612), (44, 1861055), (55, 1488844), (70, 1169806), (77, 1063460), (110, 744422), (140, 584903), (154, 531730), (220, 372211), (308, 265865), (385, 212692), (770, 106346), (1540, 53173)]