201997519190

素因数分解:

$2^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{24968791}}^1$

素因数の和:24969607

約数の個数: 16

約数和(自身を含む): 364044987360

約数和(自身を除く): 162047468170

約数列:

[1, 2, 5, 10, 809, 1618, 4045, 8090, 24968791, 49937582, 124843955, 249687910, 20199751919, 40399503838, 100998759595, 201997519190]

約数ペア:

[(1, 201997519190), (2, 100998759595), (5, 40399503838), (10, 20199751919), (809, 249687910), (1618, 124843955), (4045, 49937582), (8090, 24968791)]