199903540

素因数分解:

$2^2\times 5^1\times {\mathrm{797}}^1\times {\mathrm{12541}}^1$

素因数の和:13347

約数の個数: 24

約数和(自身を含む): 420357672

約数和(自身を除く): 220454132

約数列:

[1, 2, 4, 5, 10, 20, 797, 1594, 3188, 3985, 7970, 12541, 15940, 25082, 50164, 62705, 125410, 250820, 9995177, 19990354, 39980708, 49975885, 99951770, 199903540]

約数ペア:

[(1, 199903540), (2, 99951770), (4, 49975885), (5, 39980708), (10, 19990354), (20, 9995177), (797, 250820), (1594, 125410), (3188, 62705), (3985, 50164), (7970, 25082), (12541, 15940)]