201271880

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{20047}}^1$

素因数の和:20309

約数の個数: 32

約数和(自身を含む): 454688640

約数和(自身を除く): 253416760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 20047, 40094, 80188, 100235, 160376, 200470, 400940, 801880, 5031797, 10063594, 20127188, 25158985, 40254376, 50317970, 100635940, 201271880]

約数ペア:

[(1, 201271880), (2, 100635940), (4, 50317970), (5, 40254376), (8, 25158985), (10, 20127188), (20, 10063594), (40, 5031797), (251, 801880), (502, 400940), (1004, 200470), (1255, 160376), (2008, 100235), (2510, 80188), (5020, 40094), (10040, 20047)]