19520420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{57413}}^1$

素因数の和:57439

約数の個数: 24

約数和(自身を含む): 43404984

約数和(自身を除く): 23884564

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 57413, 114826, 229652, 287065, 574130, 976021, 1148260, 1952042, 3904084, 4880105, 9760210, 19520420]

約数ペア:

[(1, 19520420), (2, 9760210), (4, 4880105), (5, 3904084), (10, 1952042), (17, 1148260), (20, 976021), (34, 574130), (68, 287065), (85, 229652), (170, 114826), (340, 57413)]