490610020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1291079}}^1$

素因数の和:1291107

約数の個数: 24

約数和(自身を含む): 1084507200

約数和(自身を除く): 593897180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1291079, 2582158, 5164316, 6455395, 12910790, 24530501, 25821580, 49061002, 98122004, 122652505, 245305010, 490610020]

約数ペア:

[(1, 490610020), (2, 245305010), (4, 122652505), (5, 98122004), (10, 49061002), (19, 25821580), (20, 24530501), (38, 12910790), (76, 6455395), (95, 5164316), (190, 2582158), (380, 1291079)]