199971775

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{457}}^1\times {\mathrm{761}}^1$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 259653024

約数和(自身を除く): 59681249

約数列:

[1, 5, 23, 25, 115, 457, 575, 761, 2285, 3805, 10511, 11425, 17503, 19025, 52555, 87515, 262775, 347777, 437575, 1738885, 7998871, 8694425, 39994355, 199971775]

約数ペア:

[(1, 199971775), (5, 39994355), (23, 8694425), (25, 7998871), (115, 1738885), (457, 437575), (575, 347777), (761, 262775), (2285, 87515), (3805, 52555), (10511, 19025), (11425, 17503)]