389600920

素因数分解:

$2^3\times 5^1\times {\mathrm{9740023}}^1$

素因数の和:9740034

約数の個数: 16

約数和(自身を含む): 876602160

約数和(自身を除く): 487001240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9740023, 19480046, 38960092, 48700115, 77920184, 97400230, 194800460, 389600920]

約数ペア:

[(1, 389600920), (2, 194800460), (4, 97400230), (5, 77920184), (8, 48700115), (10, 38960092), (20, 19480046), (40, 9740023)]