20654276

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:320

約数の個数: 36

約数和(自身を含む): 38833872

約数和(自身を除く): 18179596

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 172, 227, 454, 529, 908, 989, 1058, 1978, 2116, 3956, 5221, 9761, 10442, 19522, 20884, 22747, 39044, 45494, 90988, 120083, 224503, 240166, 449006, 480332, 898012, 5163569, 10327138, 20654276]

約数ペア:

[(1, 20654276), (2, 10327138), (4, 5163569), (23, 898012), (43, 480332), (46, 449006), (86, 240166), (92, 224503), (172, 120083), (227, 90988), (454, 45494), (529, 39044), (908, 22747), (989, 20884), (1058, 19522), (1978, 10442), (2116, 9761), (3956, 5221)]