20380472

素因数分解:

$2^3\times 7^2\times {\mathrm{51991}}^1$

素因数の和:52011

約数の個数: 24

約数和(自身を含む): 44453160

約数和(自身を除く): 24072688

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 51991, 103982, 207964, 363937, 415928, 727874, 1455748, 2547559, 2911496, 5095118, 10190236, 20380472]

約数ペア:

[(1, 20380472), (2, 10190236), (4, 5095118), (7, 2911496), (8, 2547559), (14, 1455748), (28, 727874), (49, 415928), (56, 363937), (98, 207964), (196, 103982), (392, 51991)]