205580920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{39233}}^1$

素因数の和:39375

約数の個数: 32

約数和(自身を含む): 466099920

約数和(自身を除く): 260519000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 39233, 78466, 156932, 196165, 313864, 392330, 784660, 1569320, 5139523, 10279046, 20558092, 25697615, 41116184, 51395230, 102790460, 205580920]

約数ペア:

[(1, 205580920), (2, 102790460), (4, 51395230), (5, 41116184), (8, 25697615), (10, 20558092), (20, 10279046), (40, 5139523), (131, 1569320), (262, 784660), (524, 392330), (655, 313864), (1048, 196165), (1310, 156932), (2620, 78466), (5240, 39233)]