20194868515

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{19913}}^1$

素因数の和:20103

約数の個数: 32

約数和(自身を含む): 25550458560

約数和(自身を除く): 5355590045

約数列:

[1, 5, 43, 53, 89, 215, 265, 445, 2279, 3827, 4717, 11395, 19135, 19913, 23585, 99565, 202831, 856259, 1014155, 1055389, 1772257, 4281295, 5276945, 8861285, 45381727, 76207051, 93929621, 226908635, 381035255, 469648105, 4038973703, 20194868515]

約数ペア:

[(1, 20194868515), (5, 4038973703), (43, 469648105), (53, 381035255), (89, 226908635), (215, 93929621), (265, 76207051), (445, 45381727), (2279, 8861285), (3827, 5276945), (4717, 4281295), (11395, 1772257), (19135, 1055389), (19913, 1014155), (23585, 856259), (99565, 202831)]