20284132

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 20164892

約数列:

[1, 2, 4, 11, 22, 43, 44, 71, 86, 142, 151, 172, 284, 302, 473, 604, 781, 946, 1562, 1661, 1892, 3053, 3124, 3322, 6106, 6493, 6644, 10721, 12212, 12986, 21442, 25972, 33583, 42884, 67166, 71423, 117931, 134332, 142846, 235862, 285692, 461003, 471724, 922006, 1844012, 5071033, 10142066, 20284132]

約数ペア:

[(1, 20284132), (2, 10142066), (4, 5071033), (11, 1844012), (22, 922006), (43, 471724), (44, 461003), (71, 285692), (86, 235862), (142, 142846), (151, 134332), (172, 117931), (284, 71423), (302, 67166), (473, 42884), (604, 33583), (781, 25972), (946, 21442), (1562, 12986), (1661, 12212), (1892, 10721), (3053, 6644), (3124, 6493), (3322, 6106)]