220164980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1572607}}^1$

素因数の和:1572623

約数の個数: 24

約数和(自身を含む): 528396288

約数和(自身を除く): 308231308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1572607, 3145214, 6290428, 7863035, 11008249, 15726070, 22016498, 31452140, 44032996, 55041245, 110082490, 220164980]

約数ペア:

[(1, 220164980), (2, 110082490), (4, 55041245), (5, 44032996), (7, 31452140), (10, 22016498), (14, 15726070), (20, 11008249), (28, 7863035), (35, 6290428), (70, 3145214), (140, 1572607)]