198239780

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{17359}}^1$

素因数の和:17939

約数の個数: 24

約数和(自身を含む): 417056640

約数和(自身を除く): 218816860

約数列:

[1, 2, 4, 5, 10, 20, 571, 1142, 2284, 2855, 5710, 11420, 17359, 34718, 69436, 86795, 173590, 347180, 9911989, 19823978, 39647956, 49559945, 99119890, 198239780]

約数ペア:

[(1, 198239780), (2, 99119890), (4, 49559945), (5, 39647956), (10, 19823978), (20, 9911989), (571, 347180), (1142, 173590), (2284, 86795), (2855, 69436), (5710, 34718), (11420, 17359)]