18680945

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{2663}}^1$

素因数の和:2752

約数の個数: 16

約数和(自身を含む): 23784192

約数和(自身を除く): 5103247

約数列:

[1, 5, 23, 61, 115, 305, 1403, 2663, 7015, 13315, 61249, 162443, 306245, 812215, 3736189, 18680945]

約数ペア:

[(1, 18680945), (5, 3736189), (23, 812215), (61, 306245), (115, 162443), (305, 61249), (1403, 13315), (2663, 7015)]