20156799615

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{199109}}^1$

素因数の和:199531

約数の個数: 32

約数和(自身を含む): 34234176960

約数和(自身を除く): 14077377345

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 397, 1191, 1985, 5955, 6749, 20247, 33745, 101235, 199109, 597327, 995545, 2986635, 3384853, 10154559, 16924265, 50772795, 79046273, 237138819, 395231365, 1185694095, 1343786641, 4031359923, 6718933205, 20156799615]

約数ペア:

[(1, 20156799615), (3, 6718933205), (5, 4031359923), (15, 1343786641), (17, 1185694095), (51, 395231365), (85, 237138819), (255, 79046273), (397, 50772795), (1191, 16924265), (1985, 10154559), (5955, 3384853), (6749, 2986635), (20247, 995545), (33745, 597327), (101235, 199109)]