18028194760

素因数分解:

$2^3\times 5^1\times {\mathrm{450704869}}^1$

素因数の和:450704880

約数の個数: 16

約数和(自身を含む): 40563438300

約数和(自身を除く): 22535243540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 450704869, 901409738, 1802819476, 2253524345, 3605638952, 4507048690, 9014097380, 18028194760]

約数ペア:

[(1, 18028194760), (2, 9014097380), (4, 4507048690), (5, 3605638952), (8, 2253524345), (10, 1802819476), (20, 901409738), (40, 450704869)]