51918440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{26489}}^1$

素因数の和:26514

約数の個数: 48

約数和(自身を含む): 135893700

約数和(自身を除く): 83975260

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 26489, 52978, 105956, 132445, 185423, 211912, 264890, 370846, 529780, 741692, 927115, 1059560, 1297961, 1483384, 1854230, 2595922, 3708460, 5191844, 6489805, 7416920, 10383688, 12979610, 25959220, 51918440]

約数ペア:

[(1, 51918440), (2, 25959220), (4, 12979610), (5, 10383688), (7, 7416920), (8, 6489805), (10, 5191844), (14, 3708460), (20, 2595922), (28, 1854230), (35, 1483384), (40, 1297961), (49, 1059560), (56, 927115), (70, 741692), (98, 529780), (140, 370846), (196, 264890), (245, 211912), (280, 185423), (392, 132445), (490, 105956), (980, 52978), (1960, 26489)]