1820341720

素因数分解:

$2^3\times 5^1\times {\mathrm{45508543}}^1$

素因数の和:45508554

約数の個数: 16

約数和(自身を含む): 4095768960

約数和(自身を除く): 2275427240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 45508543, 91017086, 182034172, 227542715, 364068344, 455085430, 910170860, 1820341720]

約数ペア:

[(1, 1820341720), (2, 910170860), (4, 455085430), (5, 364068344), (8, 227542715), (10, 182034172), (20, 91017086), (40, 45508543)]