201319640

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{17911}}^1$

素因数の和:18203

約数の個数: 32

約数和(自身を含む): 454606560

約数和(自身を除く): 253286920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 11240, 17911, 35822, 71644, 89555, 143288, 179110, 358220, 716440, 5032991, 10065982, 20131964, 25164955, 40263928, 50329910, 100659820, 201319640]

約数ペア:

[(1, 201319640), (2, 100659820), (4, 50329910), (5, 40263928), (8, 25164955), (10, 20131964), (20, 10065982), (40, 5032991), (281, 716440), (562, 358220), (1124, 179110), (1405, 143288), (2248, 89555), (2810, 71644), (5620, 35822), (11240, 17911)]