203720020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1455143}}^1$

素因数の和:1455159

約数の個数: 24

約数和(自身を含む): 488928384

約数和(自身を除く): 285208364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1455143, 2910286, 5820572, 7275715, 10186001, 14551430, 20372002, 29102860, 40744004, 50930005, 101860010, 203720020]

約数ペア:

[(1, 203720020), (2, 101860010), (4, 50930005), (5, 40744004), (7, 29102860), (10, 20372002), (14, 14551430), (20, 10186001), (28, 7275715), (35, 5820572), (70, 2910286), (140, 1455143)]