28729780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23549}}^1$

素因数の和:23619

約数の個数: 24

約数和(自身を含む): 61324200

約数和(自身を除く): 32594420

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 23549, 47098, 94196, 117745, 235490, 470980, 1436489, 2872978, 5745956, 7182445, 14364890, 28729780]

約数ペア:

[(1, 28729780), (2, 14364890), (4, 7182445), (5, 5745956), (10, 2872978), (20, 1436489), (61, 470980), (122, 235490), (244, 117745), (305, 94196), (610, 47098), (1220, 23549)]