405740402

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{175039}}^1$

素因数の和:175121

約数の個数: 16

約数和(自身を含む): 651148800

約数和(自身を除く): 245408398

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 175039, 350078, 3325741, 6651482, 10677379, 21354758, 202870201, 405740402]

約数ペア:

[(1, 405740402), (2, 202870201), (19, 21354758), (38, 10677379), (61, 6651482), (122, 3325741), (1159, 350078), (2318, 175039)]