20163405970

素因数分解:

$2^1\times 5^1\times {\mathrm{1669}}^1\times {\mathrm{1208113}}^1$

素因数の和:1209789

約数の個数: 16

約数和(自身を含む): 36315906840

約数和(自身を除く): 16152500870

約数列:

[1, 2, 5, 10, 1669, 3338, 8345, 16690, 1208113, 2416226, 6040565, 12081130, 2016340597, 4032681194, 10081702985, 20163405970]

約数ペア:

[(1, 20163405970), (2, 10081702985), (5, 4032681194), (10, 2016340597), (1669, 12081130), (3338, 6040565), (8345, 2416226), (16690, 1208113)]