199918970

素因数分解:

$2^1\times 5^1\times {\mathrm{1951}}^1\times {\mathrm{10247}}^1$

素因数の和:12205

約数の個数: 16

約数和(自身を含む): 360073728

約数和(自身を除く): 160154758

約数列:

[1, 2, 5, 10, 1951, 3902, 9755, 10247, 19510, 20494, 51235, 102470, 19991897, 39983794, 99959485, 199918970]

約数ペア:

[(1, 199918970), (2, 99959485), (5, 39983794), (10, 19991897), (1951, 102470), (3902, 51235), (9755, 20494), (10247, 19510)]